I tried the Windows 7 recovery disk, and after many tries, I still could not get it to boot.
I did some research online and found two sites that give guidance on how to recover the master boot record of a Windows 7 partition:
How to Restore the Windows 7 MBR (Master Boot Record) http://bit.ly/MUbMWp
How to use the Bootrec.exe tool in the Windows Recovery Environment to troubleshoot and repair startup issues in Windows
Before I tried surgery, I made a Windows 7 installation disk from an iso image (having the original installation DVD will also work.) Booting from it and going into the recovery routines, it succeeded where the Windows Recover CD did not. It immediately recognized my Windows installation and made it bootable. The Windows Recovery CD and the Windows 7 installation DVD apparently have significantly different diagnostic and repair capabilities. Good to have both handy, not to mention a recent backup so one doesn't have to go through all this...