OK. I'm thinking this is how it works. You can simply copy the maps (and renaming them if you have to) into the Data folder, then you need to add the new entries in the target MapInfos.rxdata. Am I correct? If it's just that, I can whip something up in a few minutes. But of course, everything to do with the Map ID could get screwed up (like transfer player). I'm not sure about this stuff.