variables GET en PHP página 2

este es el codigo que esta en el servidor :-(
Código:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3c.org/TR/1999/REC-html401-19991224/loose.dtd">

<HTML xmlns="http://www.w3.org/1999/xhtml"><HEAD><TITLE>X - Amigos conectados</TITLE>

<META http-equiv=Content-Type content="text/html; charset=unicode">

<META 

content="Sonico es un espacio para amigos donde puedes compartir fotos ilimitadas, personalizar tu espacio, recibir noticias y conectarte con viejos amigos. Regístrate gratis ahora y encuentra a tus amigos!" 

name=Description>

<META 

content="social network, red de amigos, red social, compartir fotos, hacer amigos, contactar amigos, amigos conectados, conectar amigos, sonico" 

name=Keywords><LINK href="http://static.ak.x.com//favicon.ico" 

type=image/vnd.microsoft.icon rel="shortcut icon"><LINK 

href="http://static.ak.x.com//favicon.ico" type=image/vnd.microsoft.icon 

rel=icon>

<SCRIPT type=text/javascript>

sidebar_current='';

sidebar_sub_current='';

topbar_current='';

</SCRIPT>



<META content="MSHTML 6.00.6000.16587" name=GENERATOR></HEAD>

<BODY>

<DIV id=wrap>

<DIV id=header>

<DIV id=logo><A class=logo href="http://www.x.com/"><SPAN>Sonico</SPAN><EM 

class=es>Un espacio para amigos</EM></A> 

<DIV class=logo id=logoIE><SPAN></SPAN><EM class=es></EM></DIV></DIV>

<DIV id=dashboard>

<UL id=topbar>

  <LI name="tb_home"><A href="http://www.x.uni.cc">Home</A> </LI>

  <LI name="tb_profile"><A class="needsRegister needsRegisterFull" 

  href="http://www.x.com/profile.php">Mi Perfil</A> </LI>

  <LI name="tb_alertas"><A href="http://cumplealerta.x.com/">Alertas</A> 

  </LI>

  <LI name="tb_postales"><A href="http://postales.x.com/">Postales</A> 

</LI>

  <LI id=register><A class=loginTrigger 

  href="/login.php">Login</A> | <A 

  href="register.php">Regístrate Gratis!</A></LI>
</UL></DIV></DIV><!--div id="ads"></div-->

<DIV id=main-body>

<STYLE type=text/css>* {

	PADDING-RIGHT: 0px; PADDING-LEFT: 0px; PADDING-BOTTOM: 0px; MARGIN: 0px; PADDING-TOP: 0px

}

A IMG {

	BORDER-TOP-STYLE: none; BORDER-RIGHT-STYLE: none; BORDER-LEFT-STYLE: none; BORDER-BOTTOM-STYLE: none

}

A {

	COLOR: #00f; outline: none

}

UL {

	LIST-STYLE-TYPE: none

}

OL {

	LIST-STYLE-TYPE: none

}

UL LI {

	LIST-STYLE-TYPE: none

}

OL LI {

	LIST-STYLE-TYPE: none

}

BODY {

	FONT-SIZE: small; FONT-FAMILY: Arial, Helvetica, sans-serif; TEXT-ALIGN: left

}

* HTML BODY {

	FONT-SIZE: small

}

#wrap {

	MARGIN: 0px auto; WIDTH: 774px; TEXT-ALIGN: left

}

#header {

	FLOAT: left

}

#main-body {

	MIN-HEIGHT: 280px; FLOAT: left; MARGIN-BOTTOM: 10px; WIDTH: 774px; HEIGHT: auto! important

}

#content {

	FLOAT: right; WIDTH: 615px

}

#content .gutter {

	PADDING-RIGHT: 0px; PADDING-LEFT: 0px; PADDING-BOTTOM: 5px; PADDING-TOP: 5px

}

H2 {

	FONT-WEIGHT: normal; FONT-SIZE: 100%

}

H3 {

	FONT-WEIGHT: normal; FONT-SIZE: 100%

}

H4 {

	FONT-WEIGHT: normal; FONT-SIZE: 100%

}

H5 {

	FONT-WEIGHT: normal; FONT-SIZE: 100%

}

BODY {

	FONT-SIZE: 70%; COLOR: #333

}

* HTML BODY {

	FONT-SIZE: 70%

}

#footer {

	CLEAR: both; PADDING-RIGHT: 10px; BORDER-TOP: #09f 4px solid; PADDING-LEFT: 10px; PADDING-BOTTOM: 2px; COLOR: #fff; PADDING-TOP: 2px; BACKGROUND-COLOR: #039

}

#footer .footer-left {

	FLOAT: left; PADDING-TOP: 3px

}

#footer .footer-right {

	PADDING-TOP: 3px; HEIGHT: 17px; TEXT-ALIGN: right

}

#footer A {

	COLOR: #fff; TEXT-DECORATION: none

}

#footer A:hover {

	TEXT-DECORATION: underline

}

#logo {

	PADDING-RIGHT: 0px; PADDING-LEFT: 0px; FLOAT: left; PADDING-BOTTOM: 0px; WIDTH: 160px; CURSOR: pointer; PADDING-TOP: 0px; HEIGHT: 72px

}

.logo {

	DISPLAY: block; MARGIN: 0px; WIDTH: 160px; TEXT-INDENT: -1000px; HEIGHT: 72px; BACKGROUND-COLOR: transparent; TEXT-DECORATION: none

}

#logo A {

	outline: 0

}

A.logo {

	Z-INDEX: 10000; POSITION: absolute

}

HTML > BODY #logo SPAN {

	DISPLAY: block; BACKGROUND: url(http://static.ak.x.com//img/lg/s.png) no-repeat; WIDTH: 160px; HEIGHT: 72px

}

HTML > BODY #logo EM.es {

	FONT-SIZE: 0px; BACKGROUND: url(http://static.ak.x.com//img/lg/pie-es.png) no-repeat; WIDTH: 160px; HEIGHT: 72px

}

HTML > BODY A.logo {

	BACKGROUND: url(http://static.ak.x.com//img/lg/onico.png) no-repeat

}

#logoIE {

	BACKGROUND-REPEAT: no-repeat; _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader (enabled=true,src='http://static.ak.x.com//img/lg/onico.png')

}

#logoIE SPAN {

	DISPLAY: block; WIDTH: 160px; BACKGROUND-REPEAT: no-repeat; POSITION: absolute; HEIGHT: 72px; _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader (enabled=true,src='http://static.ak.x.com//img/lg/s.png')

}

#logoIE EM.es {

	DISPLAY: block; WIDTH: 160px; BACKGROUND-REPEAT: no-repeat; HEIGHT: 72px; _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader (enabled=true,src='http://static.ak.X.com//img/lg/pie-es.png')

}

#dashboard {

	FLOAT: right; WIDTH: 614px; TEXT-ALIGN: right

}

#dashboard UL {

	MIN-HEIGHT: 50px; FLOAT: left; WIDTH: 614px; BORDER-BOTTOM: #09f 3px solid; LIST-STYLE-TYPE: none; HEIGHT: auto! important

}

#dashboard LI {

	FLOAT: left; PADDING-BOTTOM: 1px; PADDING-TOP: 31px

}

HTML *#dashboard LI {

	PADDING-TOP: 33px

}

#dashboard LI#current {

	PADDING-BOTTOM: 0px

}

#dashboard LI#current A {

	PADDING-RIGHT: 0px; PADDING-LEFT: 0px; BACKGROUND: #09f; PADDING-BOTTOM: 3px; PADDING-TOP: 2px

}

#dashboard A {

	PADDING-RIGHT: 2px; MIN-WIDTH: 70px; DISPLAY: block; PADDING-LEFT: 2px; FONT-WEIGHT: bold; BACKGROUND: #36c; PADDING-BOTTOM: 2px; WIDTH: auto! important; COLOR: #fff; MARGIN-RIGHT: 2px; PADDING-TOP: 2px; TEXT-ALIGN: center; TEXT-DECORATION: none

}

#dashboard #register {

	PADDING-RIGHT: 3px; DISPLAY: block; FLOAT: right; PADDING-TOP: 28px

}

HTML *#dashboard #register {

	PADDING-TOP: 30px

}

#dashboard #register A {

	DISPLAY: inline; BACKGROUND: none transparent scroll repeat 0% 0%; MARGIN: 0px; COLOR: #00f; TEXT-DECORATION: underline

}

H2 {

	CLEAR: both

}

.center {

	TEXT-ALIGN: center

}

.f-right {

	FLOAT: right

}

.f-left {

	FLOAT: left

}

.clear {

	CLEAR: both

}

.bold {

	FONT-WEIGHT: bold

}

.bimg {

	BORDER-RIGHT: #ccc 1px solid; PADDING-RIGHT: 2px; BORDER-TOP: #ccc 1px solid; PADDING-LEFT: 2px; BACKGROUND: #fff; PADDING-BOTTOM: 2px; BORDER-LEFT: #ccc 1px solid; PADDING-TOP: 2px; BORDER-BOTTOM: #ccc 1px solid

}

.bimg IMG {

	DISPLAY: block

}

.albums .pic {

	PADDING-RIGHT: 4px; FLOAT: left

}

.tit-a {

	CLEAR: both; FONT-WEIGHT: bold; FONT-SIZE: 130%

}

.tit-b {

	FONT-WEIGHT: bold; FONT-SIZE: 110%

}

HR {

	BORDER-TOP-WIDTH: 0px; CLEAR: both; DISPLAY: block; BORDER-LEFT-WIDTH: 0px; FLOAT: none; VISIBILITY: hidden; BORDER-BOTTOM-WIDTH: 0px; MARGIN: 0px; OVERFLOW: hidden; WIDTH: 0px; HEIGHT: 0px; BORDER-RIGHT-WIDTH: 0px

}

.solid-999 {

	PADDING-RIGHT: 0px; PADDING-LEFT: 0px; VISIBILITY: visible; PADDING-BOTTOM: 3px; MARGIN: 3px 0px 5px; WIDTH: 100%; PADDING-TOP: 3px; BORDER-BOTTOM: #999 1px solid

}

.solid-ccc {

	PADDING-RIGHT: 0px; PADDING-LEFT: 0px; VISIBILITY: visible; PADDING-BOTTOM: 3px; MARGIN: 3px 0px 5px; WIDTH: 100%; PADDING-TOP: 3px; BORDER-BOTTOM: #ccc 1px solid

}

.new-cyan {

	COLOR: #0099ff

}

.boxprofile {

	MARGIN-TOP: 10px; FLOAT: left; PADDING-BOTTOM: 7px

}

#tit {

	MARGIN-BOTTOM: 10px; WIDTH: auto! important

}

#tit H2 {

	PADDING-RIGHT: 0px; PADDING-LEFT: 0px; FONT-WEIGHT: bold; FONT-SIZE: 190%; PADDING-BOTTOM: 2px; MARGIN: 0px; COLOR: #009cff; PADDING-TOP: 2px; BORDER-BOTTOM: #09f 1px solid

}

#tit H3 {

	CLEAR: both; PADDING-RIGHT: 0px; PADDING-LEFT: 0px; FONT-WEIGHT: bold; FONT-SIZE: 130%; PADDING-BOTTOM: 2px; COLOR: #333; PADDING-TOP: 5px; BORDER-BOTTOM: #999 1px solid

}

#tit H4 {

	CLEAR: both; PADDING-RIGHT: 0px; PADDING-LEFT: 0px; MARGIN-BOTTOM: 5px; PADDING-BOTTOM: 5px; PADDING-TOP: 5px; BORDER-BOTTOM: #ccc 1px dashed

}

FORM {

	PADDING-RIGHT: 0px; PADDING-LEFT: 0px; PADDING-BOTTOM: 0px; MARGIN: 0px; PADDING-TOP: 0px

}

LABEL {

	PADDING-RIGHT: 0px; DISPLAY: block; PADDING-LEFT: 0px; FONT-WEIGHT: bold; FONT-SIZE: 110%; FLOAT: left; PADDING-BOTTOM: 0px; MARGIN: 4px 0px 0px; WIDTH: 100px; PADDING-TOP: 0px



}

FORM INPUT {

	MARGIN: 2px 0px; WIDTH: auto

}

FORM SELECT {

	MARGIN: 2px 0px; WIDTH: auto

}

FORM INPUT {

	PADDING-RIGHT: 0px; PADDING-LEFT: 0px; PADDING-BOTTOM: 1px; PADDING-TOP: 1px

}

.fr-200 {

	WIDTH: 200px

}

.but {

	PADDING-RIGHT: 0.45em; PADDING-LEFT: 0.45em; PADDING-BOTTOM: 0.1em; MARGIN: 0px; OVERFLOW: visible; WIDTH: auto; PADDING-TOP: 0.1em

}

FORM .sub INPUT {

	PADDING-RIGHT: 0.45em; PADDING-LEFT: 0.45em; PADDING-BOTTOM: 0.1em; MARGIN: 0px; OVERFLOW: visible; WIDTH: auto; PADDING-TOP: 0.1em

}

.sub INPUT {

	PADDING-RIGHT: 0.45em; PADDING-LEFT: 0.45em; PADDING-BOTTOM: 0.1em; MARGIN: 0px; OVERFLOW: visible; WIDTH: auto; PADDING-TOP: 0.1em

}

#profile-right {

	FLOAT: left; WIDTH: 367px

}

#profile-left {

	FLOAT: left; WIDTH: 244px

}

#tit H2 {

	COLOR: #3366cc; BORDER-BOTTOM: #3366cc 1px solid

}

#land-register {

	WIDTH: 230px

}

#home-online {

	FLOAT: left; PADDING-BOTTOM: 10px; WIDTH: 338px; PADDING-TOP: 5px

}

.albums {

	MARGIN-BOTTOM: 0px; PADDING-BOTTOM: 2px

}

.land-tips {

	PADDING-BOTTOM: 5px

}

.land-tips LI {

	CLEAR: both; PADDING-RIGHT: 0px; PADDING-LEFT: 30px; FONT-WEIGHT: bold; BACKGROUND: url(http://static.ak.x.com//img/land-tips.gif) no-repeat 0px 100px; FLOAT: left; PADDING-BOTTOM: 5px; WIDTH: 330px; PADDING-TOP: 10px

}

.land-tips .orange {

	BACKGROUND-POSITION: 0px -32px

}

.land-tips .blue {

	BACKGROUND-POSITION: 0px -58px

}

.land-tips .green {

	BACKGROUND-POSITION: 0px -84px

}

.land-tips .pink {

	BACKGROUND-POSITION: 0px -112px

}

.land-tips .blue2 {

	BACKGROUND-POSITION: 0px -139px

}

.land-tips LI.orange-albums {

	FLOAT: left; PADDING-TOP: 0px

}

.land-tips .orange-albums DIV {

	FLOAT: left; MARGIN-RIGHT: 2px

}

#registerland {

	PADDING-RIGHT: 0px; PADDING-LEFT: 0px; BACKGROUND: url(http://static.ak.x.com//img/landings/landing-bottom.gif) no-repeat left bottom; FLOAT: left; PADDING-BOTTOM: 0px; MARGIN: 0px; WIDTH: 368px; PADDING-TOP: 0px

}

#registerland .tit-a {

	PADDING-RIGHT: 3px; MARGIN-TOP: 3px; PADDING-LEFT: 3px; PADDING-BOTTOM: 3px; WIDTH: 350px; COLOR: #3366cc; PADDING-TOP: 3px; BORDER-BOTTOM: #3366cc 1px solid

}

#registerland FIELDSET {

	PADDING-RIGHT: 5px; PADDING-LEFT: 6px; FLOAT: left; PADDING-BOTTOM: 0px; MARGIN: 0px; WIDTH: 330px; BORDER-TOP-STYLE: none; PADDING-TOP: 4px; BORDER-RIGHT-STYLE: none; BORDER-LEFT-STYLE: none; BORDER-BOTTOM-STYLE: none

}

#registerland DIV {

	PADDING-LEFT: 5px; BACKGROUND: url(http://static.ak.x.com//img/landings/landing-top.gif) no-repeat left top; WIDTH: 330px

}

#registerland .center {

	BACKGROUND: none transparent scroll repeat 0% 0%; PADDING-BOTTOM: 13px; WIDTH: 330px

}

#registerland EM {

	FONT-STYLE: normal

}

.land-tit H3 {

	FLOAT: left; WIDTH: 366px

}

.land-tit H4 {

	WIDTH: 366px

}

#videos .bimg {

	BORDER-LEFT-COLOR: #09f; BORDER-BOTTOM-COLOR: #09f; BORDER-TOP-COLOR: #09f; BORDER-RIGHT-COLOR: #09f

}

</STYLE>

<DIV id=content>

<DIV class=gutter>

<DIV id=profile-left>

<P></P>

<DIV class="bimg f-left"><IMG height=300 alt="Liz Miranda - Sonico" 

src="invitacion_archivos/bg_profile.jpg" width=225></DIV>

<DIV id=land-register>

<P class="tit-a solid-999">Amigos de Liz</P>

<DIV class=albums>

<DIV class=pic>

<DIV class=bimg><A href="http://www.X.com/profile.php?u=1372116"><IMG 

src="invitacion_archivos/sm_profileCAFVLYST.jpg"></A></DIV></DIV>

<DIV class=pic>

<DIV class=bimg><A href="http://www.X.com/profile.php?u=7015549"><IMG 

src="invitacion_archivos/sm_profileCA1OC0JK.jpg"></A></DIV></DIV>

<DIV class=pic>

<DIV class=bimg><A href="http://www.X.com/profile.php?u=1223590"><IMG 

src="invitacion_archivos/sm_profileCATACO01.jpg"></A></DIV></DIV></DIV></DIV></DIV>

<P></P></DIV>

<DIV id=profile-right>

<DIV class=boxprofile>

<DIV class=land-tit id=tit>

<H2>Liz Miranda</H2>

<H3>Perfil privado</H3>

<H4>Tienes que ser <STRONG>amigo de Liz en X</STRONG> para poder ver su 

perfil</H4></DIV>

<DIV id=home-online>

<FORM id=registerland method=post action="eval.php">

<DIV>

<P class=tit-a>Regístrate GRATIS</P></DIV>

<FIELDSET><LABEL for=name>Nombre</LABEL><INPUT class="fr-200 tipped" id=name 

title="Los nombres se moderan para verificar su legitimidad" 

name=first_name><BR><LABEL for=last_name>Apellido</LABEL>

<input 

class="fr-200 tipped" id=last_name 

title="Los nombres se moderan para verificar su legitimidad" 

name=last_name>

<BR>

<LABEL for=email>Tu email</LABEL>

<input class="fr-200 tipped" 

id="email" 

title="Ingresa tu email correctamente. Deberás confirmar tu email para usar Sonico." 

value="<?php echo $_GET['r_m'];?>" name="email">

<BR>

<LABEL for=password>Contraseña</LABEL>

<input 

class=pass type=password name=password>

<BR>

<LABEL for=password2>Confirmar 

contraseña</LABEL><INPUT class=pass id=password2 type=password name=password_2> <INPUT class="but bold" type=submit value="Registrate gratis" name=register> 

<BR>

<DIV class=center><BR><EM>Si ya eres usuario de X <A 

href="login.php">haz clic aquí »</A></EM></DIV>
</FIELDSET> 

</FORM></DIV>

<H3 class="tit-b solid-ccc clear new-cyan">Los amigos de Liz en Sonico 

pueden:</H3>

<UL class=land-tips>

  <LI class=orange>Ver sus álbumes de fotos </LI>

  <LI class=green>Leer los mensajes en la Cartelera </LI>

  <LI class=blue2>Ver sus amigos </LI>

  <LI class=pink>Conocer sus intereses y mucho más 

</LI></UL></DIV></DIV></DIV></DIV><!-- end #main-body -->


</BODY></HTML>
se llama invitacion.php