Thanks a lot voyager56 and catymag. I was able to get the map working using CNE and putting it in my root folder of SD. I also put the 3D file there and it seems to work.

I also put on my SD under Garmin, the folder (and files) for JCV and G2S. So it looks like
SD\Garmin\JCV\*.JCV
SD\Garmin\G2S\*.G2S

Does that sound right to you?