Microsoft does provide instructions on how to create a boot floppy for an
NTFS system ("How to Create a Bootable Disk for an NTFS or FAT Partition,"
http://support.microsoft.com/kb/119467), but it is an involved process.
You're probably better off with one of the 3rd party utilities that has been
mentioned by others.
BTW, I located this KB article after someone I know thought he would be good
and clean up his root folder by moving "unnecessary" files -- including
ntldr -- to other folders. Next time he rebooted: surprise! no boot.
Bob