Can i transfer an Xbox Live profile and account for Xbox 360 to a different profile on the same console?

Mistakenly I set up a new profile for joining xbox live instead of using my extensive one i'd been using (which had a Gamerscore of 4000). Is there a way to transfer the profile and Xbox live account ive set up (which has a gamerscore of 0) to the other profile on the same Xbox? Or can i transfer my details like achievements and games played onto my new xbox live profile? I had heard this can be done at a cost of 800 Microsoft points.|||All I can say is, why? If you all ready have a gamertag that has 4000, why not use that profile extensively on your 360. If you want another account for whatever reason, than use that one. If your trying to change the name of your gamertag to that of your new gamertag and keep the same score, I don't think that is possible. I've not tried it, but it sounds a bit long winded to me.|||I dont think so, u can change ur gamertag for 800 points. i think u just gotta make a new one live account with ur 4000gamerscore profile as far as i know!|||How bout um......call Microsoft and have them transfer it? im sure they can do it, no prob|||no