There is now a windows installer for joining Fishtest, created by Joachim Rang. You still need to get a username and password, but the installer is a much simpler way to start contributing to Stockfish development, versus the old way which required Fishtest to be "manually" set up. Remember, the more people that join, the better SF will get. Sign up now, and give back if you can. Team Stockfish has worked hard, now it's super easy for you to reciprocate a little.
SPREAD THE WORD TO OTHER COMPUTER CHESS BOARDS ALSO (yes, I am shouting, but for a good cause)
http://tests.stockfishchess.org/signup
https://s3.amazonaws.com/stockfish/setup-fishtest.exe
http://stockfishchess.org/get-involved/
BTW, Here is my post from CCC, it basically says the same thing:
http://talkchess.com/forum/viewtopic.php?t=50915
