Windows 2000 Pro Boot Up Loop

My main Windows 2000 Pro setup started freezing up and
after several attempted startups in safe mode, it began a
boot up loop. Any attempt to startup immediately resrats
the computer.

None of the recovery techniques worked using a setup CD.
I subsequently installed W2K Pro to another physical drive.
I can see all of my files. How do I correct the boot
process so I can use my original setup?

Help, all of my original programs are on the old setup and
my drives are configured differently. I do not want to
reload all of my programs.