I just use plain old bittorrent... and I never have problems downloading exactly what I want, at a really good speed. I do all my torrent searching through
www.torrentz.com. Never had a single problem.
Don't bother with the strange little 'invite only' clients/servers/sites. Just do it the way everyone else does, and you shouldn't have a problem.
Bittorrented (so far):
70+ episodes of Bleach
30+ full length DVD-RIP movies
Photoshop CS2.0 with keygen/crack/etc
Stubbs the Zombie (PC and Mac)
FileMaker Pro v. 7.0 (or 6.0, I can't remember)
Call of Duty
...and many many more programs that I can't remember off the top of my head.
OH YEAH... MAYA CGI rendering - full version.