Join
The group uses Yahoo for posting, so you will have to join yahoogroups. No biggie, it's free, and you can do it right from the RPG posting board.
The posting board for the RPG itself.
The OOC board for any off-topic posts, ideas, character submissions, etc...
If you have a website or a homepage, we now have nifty little posters in the Recruitment Center that you can put up so other writers can find the RPG.