I have just enabled avatars for the forum. If you would like to have an avatar, you will need to upload it from your machine. Any user with an inappropriate avatar will be warned or banned, depending on the severity of the image. They will also lose the ability to have an avatar. The board rules have been updated appropriately.
The maximum dimensions for an avatar is 90 x 90 pixels, with a maximum filesize of 10KB. If you have any questions, please post in the "General Discussion" forum.