|There is really a few ways to use NTbackup, all are file based and not a partition based copy.|
One is use it to back up to a remote media or usb or such. Backing up to a file on the same drive is about half useless.
At least make your system like you want it and then save a backup that includes system state and all the drives you wish to save.
Then you can use ntbackup to save off smaller parts. The help at ms pages are best to learn from.
To recover it is a bit complex but that is the way MS did it. You install xp then apply the backup (recover) to return it to the as saved state.
Hang up and live.