As mentioned in the subject, I have a Garmin 62S GPS and I am trying to download an AR Wilderness Map.
I have Windows 7 on my laptop. I am not sure if that is the problem. I looked at the tutorial for the how to open the maps in Map Source. My MapSource doesn't look like that. Every time that I open the Map Source in the first place it wants to extract and set up like I've never used it before. I saved it on my desktop. I am not sure if that's the problem.
Try using BaseCamp.
It sounds like you are running the Mapsource Installer instead of the program itself....