Thanks!

Well, you can post anywhere's you want. Just choose a board,
find a subject (or make your own), and type away. But make
sure to follow the forum rules and don't spam, go off topic,
or anything else that is against the rules.

If
you are refferring to how to post, then just click on a
subject, scroll down the read some of the recent replies (if
you want to, that is..), and then you should be able to find
a button-like thing saying "Reply". Just click on that and
type your reply. Or if you want to start a new topic, just
go to the board where the topic should go, and you should
come across another button-like thing saying "New topic".
Then just click on it and start.