http://sourceforge.net/blog/hosted-apps-retirement/ says the SF trac installation will go away, and we'll have to move this to the project web space.
Move everything to github.
Specific instructions at https://sourceforge.net/p/forge/community-docs/Hosted%20Apps%20Retirement/
trac instructions do not work at this time.
SF never did manage to figure out how to get trac in the project space, and finally scheduled the hosted implementation for decommission June 2014. All tickets imported into SF, but future work will be done on github.