This was my first test, but the method above appears to work.
Test drive was Windows7 x64 default install (with separate bootmgr partition and os partition)
Capture Image method was Rdeploy disk-to-disk copy (including both partitions)
Apply image method was simply to swap drives from the original to the copy.
I was surprised that this image method also exhibited the no-boot symptom. I would have assumed it would boot since it was basically a copy of the other drive. But it did not boot.
Booted to WinPE x64 and followed the instructions above:
1. bcdedit - showed "value = unkown"
2. checked diskpart - list volume - boot partition was c: , OS partition was d:
3. bcdedit /delete {default} /f - command completed successfully
4. bcdboot - this showed the bcdboot help file, so I'm not sure if running this also did something
5. bcdboot d:\windows /s c: - success. I did not browse to the d:\windows directory first, I just ran the command
6. removed WinPE disk and booted to Win7. Worked fine.
My next test is a single partition Win7 with the boot files on the same partition - that's probably the scenario we will be using to image rather than the default split-partition setup.