We have moved to using Gravatar to allow users to maintain their avatars centrally, and globally. If you already have a Gravar then it will appear here. If you'd like to create one (and it's really quick and easy) go to http://en.gravatar.com/ and create an account using the same email address you used to register here. Your image will be carried over to here.
* Fields marked with a * are required.
† Usernames can contain any mixture of uppercase and lowercase letters and numbers with underscores, and must start with a letter. Spaces and all other characters are not allowed in usernames.