Version 1.3 was the last "totally free" version, and IPS still permits it to be used, but does not offer a download or support.
The look of Invision Power Board 2.0 is similar as the current version. This was the last version which could be downloaded for free from Invision Power Board servers. Just as with IPB 1.3, some users still using the unrestricted trial versions of the 2.0 PF[1] versions but again, contain a lot of security holes and are no longer supported. Unfortunately there exist no modification which makes IPB 2.0 secure.
http://en.wikipedia.org/wiki/Invision_Power_BoardTu versión es de pago.
Salu2