See in text reader (NotePad for example) string likes "Bmap"="C:\\Garmin\\XXX\\basemap.img" in the file - FAM_1168.reg.
And when make in Garmin folder directory "XXX" and put in to it the all of "680 img-files, basemap.img, FAM_1168.reg, 10000490.typ, mdpmap.img, product.mdx, product.tdb".
Make folder FAM_1168 in C:\Garmin\ and remove to it all files. It will be OK!