Well, it works!
Just installed GPSVP on the iMate running WM6 (my spare PPC)and it appears to work. It found my bluetooth GPS (my spare GPS) and showed my location on the world map that was included in the installation file. I am now downloading Shonky maps to see what they look like. I will post an answer tomorrow.
I loaded Shonky maps onto the iMate. Turned on the bluetooth GPS and started GPSVP. After I told the program where the files were located (in folder on the SD card), it selected the appropriate map and displayed my position on it.