We found that the license file was missing altogether, even though the installation process seemed to be working correctly. We installed the software on an old XP computer, copied the license file from that computer, and moved it over to the Win7 machine. Then we ran License Manager, and we could go through the activation process. So that essentially resolved my post.
The software still won't activate, but that's a different problem with NI having trouble activating the old serial number and old software. Eventually, the system needs to be rebuilt from the ground up using SQL and .net programming. The old PDA module would be nice to have so that we can rebuild the existing application with a few very minor changes.