If the thread you want to post in already exists (so you want to reply to it): Open up the thread you want to post in, and then click the big "reply to thread" button, type in what you want to say and click "Post Quick Reply" If the thread you want to post doesn't already exist (so you want to make a new thread): go into the subforum you want to post in, and the big button that said "reply to thread" before now says "post new thread" so you can click that. Same deal from here on out, you put in the name of the thread at the top and the content at the bottom, and then click "Submit new thread"