if you want to put them on the message, follow wildcattennis, but if you want a picture under name whenever you post, then click "profile" near the top of the screen (when veiwing the forums index) and go down to the very bottom, right above the "submit" button, there should be a box to put an address of a picture online.
warning! your avatar cannot be more than 135 pixels wide!
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I totally died. in the meantime im drumming for my band, Magnum Solstice. if you want look us up and tell us we suck, ill love you for it :P