For the IMG use the last FIU version (no command prompt window) and wait ,it's a big map, it needs some minutes ,it depends on how fast is your pc, but it must unlock more than 2 gb maps (379 mapsets)
It's a map with FID greater than 2200 and would require .gma file or it will be locked in your gps.
Or it needs , as said before,to be unlocked with mapset unlocker for MS( needs time let it work, forget it till wont close itself) or FIU for the IMG