Primo igo maps


Hi all.
I got primo igo gps to work via an SD card on my car stereo which runs windows ce.
But the maps are out of date,can anyone point me in the right direction as to where I can get up to date maps from. Can't seem to get them anywhere,some new voices would be a great bonus aswell.
Also,does anybody else use this and find that it's really annoying the fact you can't enter a full postcode in to search for a place. This is a really big gripe.
Maybe this isn't the best out there,?
I'm open to suggestions of anything better.