This is where you will find them:
http://www.miairsoft.org/index.php?board=33.0If you are a part of a team and would like your own private password protected section where you guys can talk and plan things out, send a PM to luke213 along with your desired password and folder name (usually your teams name).
Once the folder is created, you can then give your password to your team-mates so that they can access the folder. That space belongs to your team. MIA rules do not apply there so post whatever you want.
If you have any questions, post them here.