There is a substantial memory leak/overall slowness problem with the release of RetroShare we were testing, so we are still looking for one that works. Galet (
http://galet.sourceforge.net) works well, but is only for directly connected friends. Those of you with a circle of close friends will enjoy that one.
If you have 2 other friends, maybe you can try some of these programs and see if your 2 connected friends can talk to each other through you. That is our main objective in trying to find an anonymous system.
http://www.alliancep2p.com/ is probably the next one we will try when we have time.
The good news out of all of this is that a PHP based Anonymous P2P system does not seem so hard anymore. So that is always a possibility if I somehow get time to code all of that.