how do i get a graphic under my name

Welcome fellow newbie dude. To answer your question:
1. Go to "My Proflie".
2. Click Edit Profile.
3. Go down to AVATAR and click.
next just pick which one You.

Hope this helps.

and if you wish to have a personal avatar, You can buy one from the admin (Gizmo). So if you want to purchase one, Private message him on the board or in Irc.