at the top of the page there is a drop down menu that says quicklinks. click on that and then go down to where it says user control panel and then choose edit profile. that will take you to the appropriate screen to change al of your settings and add a pic for your avatar.........hope that helps... i'm horriable with directions
oh you know what... up at the top too, you can also click on User CP (which is right next to Quick Links).....how ever you choose to get there i suppose will work