To all who are interested in this thread:
I un-installed and then re-installed the USB driver, and everything went
according to plan until I got to step 7. This is where the USB driver
bridge is installed. When I clicked install on this portion of the
software, it said "Windows Install Shield not responding".
So, I think this is where things are hanging up for me.
Let me emphasize again that I don't have the USB cable plugged in. The rig
is off, but the power supply is on.
I think something might be quirky with my Windows 7 operating system here.
I'm also going to try another cable as John suggests.
73 from Tom Behler: KB8TYJ