Posted on: 2013-04-22 12:54:11.000Sorry, when I moved the site over from Dragonfly to newLISP on Rockets I forgot to port the whole "Edit Profile" section.
I've fixed this now, and you can upload new avatars again and choose from any avatar (including ones you've uploaded) in your profile. You can get to your profile by clicking on the "Welcome" link in the upper right, or from the old "Edit Account Details" link on the main page.
Until I get auto-scaling of avatars included, please try to keep image sizes less than 100 pixels wide. Thanks!