Nah man...if i kept my posts from all 3 of the siccness boards, i'd be up at about 6,000 posts by now. I was never able to change my status. You either gotta stick with the name you got, or start all over it again. Its up to you. Sorry bout that man. And as for making alternate screen names, I don't really know...i've always been Stealth. I'm not trying to be a dick by any means, but I know Cel-c-us has registered multiple screen names, so he could tell you how if you ask him.
Sorry I couldn't be of more help.