After reading over your post again I'm also curious as to how you "just removed" openSUSE. If you just deleted the partitions then no wonder you can't boot! If this is the case you could try restoring the mbr with your windows disc.
Boot up using the Windows dvd (or cd if it's an old version of xp) then choose the recovery option.
Try using these commands:
then
then type
then hit enter to restart and you SHOULD be back into booting up with windows.
Take Care,
Ian