Does anybody know what happened to the TeamX website/forums at http://teamx.ru ? They seem to have closed the website, but I have no idea why. The only thing left is a short paragraph in Russian from January 21, 2012, linking to an archive of stuff previously hosted on the TeamX website as well as to a different Fallout modding forum, but no reason for the shutdown is given.

I think they just stopped/fell apart. You could try and crawl through the NMA archives to find out why, but active development by them stopped ages ago. Similar work on Fallout is under the guise of Fallout FIXT, available from NMA (and probably linked somewhere on this forum).

Edit: Wasteland Ghost (Leader of TeamX?) was working on a Fallout mod for awhile, but alone, and again that project is absorbed into Fallout FIXT as far as I can tell.

http://www.nma-fallout.com/forum/viewtopic.php?t=60662&postdays=0&postorder=asc&start=0