i assume it's in profile but can't find it.
Go to account settings, then on your left hand side will be personal settings, directly underneath that will be message board settings, it's in there. :-)
FYI: the avatar selection options are kinda screwy right now so might not be the fun experience it usually is.
Good luck!
Ok the avatar page finally works but I can't find the Thais picture anywhere. Why?
Maybe do a search? Otherwise it's possible it's not an option.