Ok there is a bit of confusion here-

If you downloaded the Mapsource version:
(Topo Hispania v2.03 for MapSource or BaseCamp by SinRenKor)
you must have extracted it as an exe, you must run it and install the map in Mapsource- Once installed ,open Mapsource and you'll have the map in it-
[Only registered and activated users can see links. ]

If you downloaded the Sd version:
(Topo Hispania v2.03 for MicroSD (GPS Garmin) by SinRenKor)
you'll have ,once extracted ,an .img to put directly in your device sd ,in a Garmin folder
or in Map folder (it depends on unit).
Gmaptool can be used to install an .img in Mapsource ,when the original Mapsource version isnt available
and to work he needs Cgpsmapper -
We have here the original MS map ,so we wont use it
Better you read some tutorial
[Only registered and activated users can see links. ]
and
[Only registered and activated users can see links. ]