MapSource came with my Garmin 60csx on a CD. Not sure if White Cedar got that or not. I'm learning myself. My question to DD would be... Do you need to remove maps from your GPS to add maps? Or do you just add maps and the older ones just dissappear? I put on some Minnesota Topo's and BWCA waypoints. And when I load the WCPP Topo's and waypoints it sort of messes up the BWCA maps like the older info is replaced even though they are in two seperate areas.