....i have a 660 with 2010 maps on never been updated.so i have downloaded the zip file of uk from osm and unzipped it but am having problems getting the maps to work on the 660 do they have to go on a sd card or can they go straight to the 660 memory,there is space to fit it in the 660.also do i have to have basecamp or anything else on my computer,thanks in advance.