There is a board FAQ which can be viewed via the small link in the top right corner (between "Search" and "Forum Home"). It answers the following questions:

Do I have to register?
How can I use emoticons?
Can I add HTML to my messages?
What are moderators?
How can I change my registration profile?
What are those pictures under member's user names? Can I use one?
What are the member 'status' under member's user names?
Are cookies used?
How can I clear all cookies set on this board?
Can I edit my own posts?
Can I attach files?
How can I display images in my posts?
Are there any rules against posting nudity or graphic violence?
Can I search?
What are private messages?
What is an Ignore List?
What is a Buddy List?
Can I add a standard signature to my posts?
Are there any censor features?
What do I do if I lost my login ID and/or password?
Can I be notified by email if someone responds to my topic?
What are Today's Active Topics?
Can I search private forums?
What are posting icons?