Thanks for the help. I should have stated I already tried that (tried it again since you suggested it!)
I have done a bit of research and it appears I've screwed up the implementation. When I went to change my own profile I lost my avatar (I was trying to duplicate what some of my readers had done) and now I can't reset it.
Here's what I have found out so far. I edited my profile and selected a different avatar. I opened my specific member file and it is being stored correctly (and I even verified the image exists by copying the url in the member file and pasting it in the browser).
However when I post my avatar (and anyone else's that has modified their profile) doesn't show up. I opened the html source and it is using

for my avatar.
I suppose I have to dig through the code, but any suggestions on where to start would be greatly appreciated!