I have succesfully downloaded and installed Garmin Mobile PC software version 5.00.70g on my laptop, it runs through Franson GPS-Gate.
With KG15 generated the
GMAPSUPP.UNL
and
SW.UNL
file and put them in root of Mobile PC folder: C:\GarminMobilePC
Downloaded Australia map from link in Maps thread.
CNAUNZ2010.30unlocked
Inside I found the GMAPSUPP.IMG file and placed this in C:\GarminMobilePC and to be sure also in C:\Garmin\Maps
Had Map Source already installed previously in combination with nRoute ...