I finally have a face!
I just went in through my Account page and at the very top of the page (I think at the left) there is a link that says "Add Pictures" or something like that (It's no longer showing since I have a picture now). After you click on the link all you do is e-mail the folks at OH the picture you want to use and they will put it on there for you.
Also, if you go to the main message board there are always directions for adding pictures, etc.
Hope this helps! Monica