I've tried to use Maemo Mapper before, but all the instructions seemed to center around using GPS? I feel stupid in that even after reading the quick start, I can't figure out how to download maps by geographic area. I'd love if someone could point me to a quick start for dummies type of thing. I'm leaving in about 4 hours, but I'm at work so I've got only about 15 minutes total that I can dedicate to this.

Unfortunately this trip came up spur of the moment (just found out I was leaving late last night) so there wasn't a lot of time for prep.