I am not using Ghost, I burn images on DVD as backup...some do this with CD.
Have a look what the commandline is to start your backup or restore of Ghost and simply add -NTIL
Watch out it is NTIL not NTTL as you stated, and the - (minus) has to be there as well.
If in doubt, consult your help files and search for SWITCH.
I found the info on a distributor circular from 1998....