User Profile Files (documents and settings files) lost

I accidentally copied the default administrator user
profile (on Win XP Pro) over my local user profile (the
one I use every time I use my computer). Now, when I log
in with my local user profile, all of the files that were
stored under "documents and settings" are gone. I cannot
access any of the desktop files, My Music, or My
Documents files. I feel that they have not been erased
off the disk, but I do not know how I can access them.
Does Windows have any utilities I can use to attempt to
recover these files?