Download the source files from Map Centre, link here http://mapcenter2.cgpsmapper.com/mapsetview.php?id=185.
Save the files to Z:\GPS\cGPS_Source files.
Unzip the source files to the existing directories
Use the batch file z:\gps\compilemaps.bat to compile the maps
All the img files will be copied to Z:\GPS\Jim-Comp
Use sendmap in z:\gps\sendmap20 to get the maps onto the GPS