Easiest way I can think of is to run regedit and do a search for your name (spelled incorrectly). When the registry entry that stores your name (there are a few) is found you can change it to what it should be. Probably a good idea to back-up your registry before tampering if you are unsure of what you are doing. I think the instructions are in the windows help file. To run regedit, click on the start button and then click run... then type regedit & press enter.
brgds PenItOff...