I see the error NTLDR missing after trying to boot a restored drive that had multi OS's in a multi boot config. How do you fix that?

Because Active@ Disk Image is imaging a system that is set for a dual boot or a multi boot environment into so many different possible options, there is some mixup by Windows when it goes to boot. There is an issue with the “Boot Configuration Data”, BCD for short, on that drive. You should probably run the Startup and Recovery from a Windows install CD or use the BCDEdit.exe command-line to fix the issue.

Here is documentation from Microsoft’s web site about BCD issues and how to go about resolving them:

Boot Configuration Data in Windows Vista

Boot Configuration Data Editor Frequently Asked Questions