As Chris has said above, the only thing you need to do to join "Pirates of the Mafia - Round 2!" is go to
this thread, and say that you would like to join. When Garfieldo has time, he will add you to the usergroup to see the "
POF's Mafia Contest" sub-forum, where you will find a check-in thread. You'll need to post in the check-in thread too, to confirm to us that you will be there to play the game. Also, the rules and information about how this game works can be found in
this thread.
Sign-ups close on January 8th, and the game will begin January 10th, so you still have time to sign up!