Rosetta@home is located here:
http://boinc.bakerlab.org/
On the front page, there is a "Join rosetta@home" link at the top of the left hand column. Follow this link for detailed instructions on setting up rosetta@home.
To join the Longecity team, follow the "teams" link under "Returning participants" on the left hand column, and search for "Longecity". Follow the resulting link to the LongeCity team page and click "join this team". You will only see this button if you do not already belong to a team.
Edited by thughes, 08 September 2011 - 04:22 PM.