If you go to your User CP, and scroll to the bottom, in the left hand corner under blog it says "request username", you can request a new name and after the mods approve it they will change it. I changed mine and it took 2-3 days!
Exactly, you have to get Bev's approval and if it is nothing offensive then there shouldn't be a problem. You just have to wait a few days, she's busy so it take some time for her to see the request.