I get my maps from this location; http://garmin.openstreetmap.nl/ and use the installer that is provided.
I notice that I can utilize a MAPNIK style TYP file.
How do I go about implementing this TYP file with these maps.
Simply select the typ file in the webinterface and the TYP will be included in the map that you download later.
Mapping tools: Garmin GPSmap 60CSx, Giant Terrago 2002