ok, im still new in this garmin n mfm. im setting up garmin for my gps device (nokia n82)

I'm using the latest garminXT for s60v3, i've set it to use built-in gps
i've activated my garmin, i've downloaded malfreemaps from here : http://www.malfreemaps.com/viewtopic.php?f=23&t=893

so, this is the screenshot of my garmin's folder in n82 memory card.



but the garmin doesnt work, it start up, but when navigating, no map shown, the arrow is there... but the background is empty (no map). any1 can help me here? anything i miss? what is the map id?

malfreemaps lor..