NTBackup runs just fine on windows 7 64 bit. I imagine it would run on 32 bit — haven't tried it.
Copy 3 files from an xp installation into a folder on the Windows 7 machine:
These files are located in c:\windows\system32
Run ntbackup.exe from the folder you created on the windows 7 machine.
Click on do not show this message again when warned that removable storage service is not running.
Click on OK
NTBackup starts up and runs just like on XP.