Heres a quick method to solve your naming problem.

1) Backup any files you wanna keep from the SA profile.
2) log off, then logon with a different admin account
3) Delete the SA profile via system properties/advanced/user
profiles/settings.
4)Next, change the name of the built-in Administrative via Local Security
Policies to any name you like.
5)Now just logon to the new account. XP will create the profile with the
name you used in the Documents & settings folder.

-Lisa Baxter