Kjodle: the wiki (software) has been dumped with notice and replaced with a much better system, with a search engine that actually works and much improved content. The content has been improved and moved to a new home. Obsolete content has been pruned, many pages have been corrected and made more readable.
It's still quite easy to see old content, thanks to the Web Archive waybackmachine. Check this trick:
The FFmpeg page in September 2015: http://web.archive.org/web/20150914085050/http://wiki.dreamhost.com/index.php/FFmpeg had a very visible warning for outdated and unsupported content.
Go a little earlier in time, February 2015: http://web.archive.org/web/20150202230907/http://wiki.dreamhost.com/index.php/FFmpeg the old ffmpeg page, and I see that the instructions are the
./configure && make && make install... Those are already documented on ffmpeg page and I can see why it makes no sense to keep a copy somewhere else... for something that is not officially supported in the first place.
Now, to move the conversation back to a positive ground: what's the push to get a different version of ffmpeg? What exactly are you trying to achieve? let's talk about other workarounds here (in case ./configure && make && make install is not an option... I don't know that.)