Still doesn't say HOW to register and my IRC thing expired years ago so I can't use that.
Well we're getting that sorted out now

Guys when you come into chat and you start having the same problems about your nicks going into guest nicknames, try registering it, if it still does not work, then it probably means the username you wanted to use is taken. Try using alternate nicks or mIRC if you can.
Just be patient for those who are having troubles. I'm attempting to sort out one username issue now (Mothra's) so hopefully her resolution will help others.