[p4v700r]

i am having problems with tomtom 5, when i load it and then put the maps on it says no maps found, when i use the software the map included is benelux and i want great britain, so i copied the great britain map onto my sd card and it says no maps found, if i copy and paste the benelux map it will say no maps found, but if i install the benelux map through the software it works, so i was wondering if there was any way i could put extra maps in the tomtom software that i have or if there is any other way to solver, thanks