click on your username
then click PROFILE
once you get to your account info there you will see BROWSE
upload one of your own images(there is a size limit)
OR you can use the forums predetermined avatars from their gallery.


i think most ppl will want to use one of their own.

I did use an image that was larger than permitted size.
So i sized it down with Infranview.

If you have an image that you really want to use and it's too large just size it down.

No problem.
IF you still run into trouble or you can't find the location to upload your image let me know.

Will give a hand!