Sorry guys i've not replied, but you have it figured anyway. I remeber from my research and troubles with my N95 8GB that the qf file needs to be present, as this is what file is created when Nokia maps starts up for the first time on symbian, so I thought I'd just copy it from my N95 and fool the Map loader!

Remeber to click delete maps from storage, it's a good idea to clean your device of any maps.