In OP you said that you ghosted DISK1 to DISK2, but the screenshot shows that DISK0 is System Reserved and Windows 7 so we have to assume that you ghosted DISK0 OS partition to DISK1 as in the screenshot.
If this is the case, and System Reserved is booting DISK1 as you believe, then unplug DISK1 to see if DISK0 will start as before. Make sure DISK0 is set as first HD to boot in BIOS setup.
If not, boot the Windows 7 DVD Repair console or Repair CD, accept any offered repair, then if it doesn't start boot back in to DVD Recovery Tools list to run Startup Repair up to 3 separate times with reboots until Windows 7 starts again on DISK0.
When you plug DISK1 back in you can try booting it via BIOS one-time Boot Menu key but it should not boot as it was using the System Reserved MBR to boot before if it was indeed booting. You did not copy System MBR when you only copied OS partition.