XviD4PSP 5 can only be found here, Why?

[Tellurian]

Every resource I have found on the internet for XviD4PSP goes directly to version 7 (with v6 listed as previous).
When searching for "XviD4PSP 5" there are pages of results that all point to this site (VideoHelp.com).

Where did you get the newest beta for version 5? Is the newest version 5 safe to install?
Why is this the only place in the entire internet to get a copy of it?

[Baldrick]

http://code.google.com/p/xvid4psp/

It's safe. Scanned with virustotal.