Somehow we've ended up with 2 sourceforge projects. The other one seems to be more active, so use it: https://sourceforge.net/projects/timewarp/
The SourceForge project now exists, as you should be able to tell considering that you're viewing a news item on it.
Hopefully this will help with code unification. The different versions that I'm aware of include:
Official Release v.05
Mr. Sparkles Windows version (v.05 + windows support)
orz's unofficial release v.05u1 (v.05 + bug fixes + some of S.P.Y.s old stuff)
S.P.Y.s more recent stuff (v.05 + AIs)