go to your profile and go to edit preferences, i think.....there are three choices. scroll down and you'll see how to upload an image. i'm really tired, so i hope i've helped you........pat p.s. it has to be thumbnail size for your avatar by your name and can be larger if you use it as your signature.

if you use it as your signature, sign up for an account at photobucket, import an image that you like, link it to PC (it tells you how) and it will show up as your signature..........