MapThis question

i've got a 1001 model running 5.50 Gen-d3 final build.
finally got Mapthis installed and showing a map of the area i want it to show, but i still can't get it to let me search for an address. if i'm correct, that's what the geodata is for, right?
but why can't i get it to show me addresses?
i'm not using a GPS unit, simply cause i don't want to spend the money, or have a silver box on my PSP.
any help would be greatly appreciated.

ok, so i got it to allowme to search for an address, but everything i search is like 1/4 to 1/2 mile off. how do i fix this? anyone?