If you are going to use this map on a gps please notice that the entire map is transparent and doesn't contain a background.
As a result you'll see Topo Spain (or another Spanish map) at the same time. My advise is to turn off all other Spanish maps except the Worldwide Basemap.
Changing Transparancy to Opaque with GMapTool doesn't solve anything because this only works if the map contains a backgound layer (0x4b) and this map just lacks the background.
In Mapsource and Basecamp this is no problem because the Basemap (which is never included in the img file) does have a white background.