I would try
this link
supposedly a boot disk that lets you change password and registry on any NT/win2k machine.
Says "There's full FAT filesystem support, including long filenames (VFAT) but only limited NTFS support" not sure what that means ....
If you dare to try, please report here and tell us if it works!
P.S. I have never tried it my self, but found it for a friend that lost his password, he got cold feet when I had the disk and asked if had copied every importaint file to a network drive, he then made one last try and remebered the password ;-(