Yeah, unfortunately I dont host the boards so we're at the mercy of Sparklit, the company who hosts them. Guess they don't like NASCAR.
However, you can use your own. Notice my #8? When you edit your profile, and go to the avatar selection, you just choose "specify my own", then you have to choose a url of your avatar. Mine is saved on the website. If you don't have a place to save your own avatar on the web, e-mail it to me and I'll save it on the site so you can use it.