lol. What? Like that's not easy? Seriously, it's super, super easy. Just download this script to your Linux box (if you have Windows, you're gonna need to do this a different way), install sqlite3, Python 2.x und PySQLite 2.x. Next, open a command prompt and run the command as follows:
replace the numbers after the first four variables (-t, -l, -b, and -r) with the coords Maemo mapper gives you for the area you want to download. Then add or remove zoom layers by changing the numbers after the -z. Each of those is a zoom layer. So if you only want zoom levels 6, 5 and 4, then you only need "-z 6 -z 5 -z 4" after the coords in the command.
To get the coords, zoom and navigate to the area you want to download, then click the menu, maps, manage maps, then click the second tab. It'll tell you your coords. It should be labeled "area". It's not the top four numbers you want, but rather the bottom four, and you want them exactly in the order they appear.
Just copy it wherever you want to on the tablet, then go into Maemo Mapper, create a new repository, set the type as "sqlite" and then set the map file as the path where the file is, and the name you gave it. Some maybe something like this: