Basically, I think it would work best just to have a Game Development Sessions board, along with an archive board in which to place past discussions. SHMUP-DEV handled it through a separate board for each session, with old sessions becoming a child board of the Old Sessions board (
www.shmup-dev.com/forum/index.php <-- In case you want to see how they handled the boards, if I wasn't clear enough), which I think would work well by allowing members to see an archive of old development discussions. But, if you're not willing to do a new board per session, which I can completely understand, I'll probably just need all of the to-be-archived topics to be merged in an organized manner into a single topic, keeping the discussions of individual projects untouched, and moving them all into the Archive board.
All development throughout these sessions is completely open - you can have groups of people working together with several projects in the sessions, discussing your design ideas and posting your results as they come. The only real thing that I would need is local moderator privs in the related boards, so that I can sticky, lock, edit, and do all of the general management stuff that's needed to maintain any boards related to the sessions.
My comments on the site staff position were just to point out that I don't care what you do in that regard - my goals don't really encompass becoming staff at this point, I just want something to help cure my constant boredom, to bring about more intelligent people with whom I can hold competant development discussions, and to possibly increase the quality of both design and programming of the various projects spread throughout ZFGC. Who knows, perhaps people will build on their projects from these sessions to release an interesting game.
On an unrelated note, the footer of the site template still has 2007-2008 as the "copyright" dates (to be honest, I see nothing on this site that is property of ZFGC, but that's another point entirely), and we're about to enter 2010. Might want to update that, no? <.<