Lets see...
The insanity board is 2 doors down to the left.
The general discussion is down the hall a ways, you'll see a silver door, that's the one.
The cafeteria is the room you just passed that smells like twinkies, mountain dew, spam, and pure caffene.
The darkstorm boards are 3 doors down to the right.
And the rest of the forums are in a box, down the street, under the stairs, in the basement in the corner of Jerry's baitshop. They are color coded according to awesomeness. The most awesome being puce, the least awesome being turquoise.
Also the vending machines look like R2-D2 and only vend mountain dew, random energy drinks, SoBe, and the occasional random update... I blame Cspace/Rylkan for that one.