Ok all these people have these little icons when they respond to a forum question. How do I put one up.

They also have like a banner below there post. How do I do that!

Ah - I think what you're referring to is an avatar and a signature.

Look to the top of your screen, you'll see a link called 'My Controls' - click that and you'll get a menu to the left of your screen. Simply select Avatar Settings and Signature Settings.