In Windows XP you can change profile path of a user account very easy.
Browse to this registry path on the target machine:
HKEY_LOCAL_MACHINE \ SOFTWARE\ Microsoft\ Windows NT \ CurrentVersion \ ProfileList
Now you have to identify the SID corresponding to the account you want to change the profile path.
Select the corresponding SID from the registry editor and change the ProfileImagePath value with the path you want to change to.
Restart your machinge and that’s all!