A friend of mine began his membership here in caedes with a number and he would like to change it, he has tried over and over. It keeps coming up with telling him "I keep trying to start a new user name to no avail.,the screen keeps telling me error must use alphanumerics and underscores" Does anyone here know how he could do this? To just plain change his number to a user name?

this bit is in the FAQ section:

'Can I modify my username or delete an unused username?
Due to the nature of the database which runs this site, it is not a good idea to delete usernames or to rename a user's account. If you are unhappy with your current username then you should just quit using it and register a new username. '