I'll answer these for you backwards.
We recently switched irc servers, so you can now find us at us.quakenet.org (or any other quakenet server) at #tremulous. We do most of our talking in our "private" channel, but we'll certainly chat with you.
As with most development teams, it is very hard to put a date on a project. But, as a fan of many up-and-coming mods, I also hate hearing "when its done" So, if you look at
this thread you can see our progress. Most of the work needs to be put into the alien models and skins, and play testing. I cant give you a date because I honestly have no idea. But I can assure you we are getting quite close now.

Unless there's something major I'm forgetting here...