RodA wrote:855.2884 appears to be Australia, I'm looking for Western & Central Europe

http://www.navitotal.com/forums/showthread.php?2662-All-New-Maps-855.XXXX&p=13321#post13321
Scroll down. W&CE maps are at the bottom.

From where you are, all you have left to do is replace the old map folder with the new map folder & patch the map.