avatars

This morning I noticed that some of the avatars (the old ones, mostly) were broken on people's posts. When I looked into it, I found that I had originally tied the images to the site's URL - and when I changed that earlier in the week (from .com to .org), they broke. :( All of these...

Sean - I've seen some custome avatars - how do you set one up? Couldn't find anyting when searching. TIA