Looking at your cp command I think I see the error. I suspect you might have more luck with this:

cd /mnt/hda1/WINNT/SYSTEM32/

cp config/* /mnt/sda1/*


Before switching directories you might want to do an ls -l and doublecheck the case of the directory stucture for the Winnt directories. Remember that *nix is case-sensitive, so if it's caps, you need to type caps.