@roughrider, I load maps thru the config.xml. This way there is no extracting stuff or making a media folder or adding to the media.zip. I made a folder for maps, I use aMaps, and place the maps in there. But I DO change the actual download to take all the folders out of the media folder so they're all by themselves. So this map just has the levels folder in the .zip. Then I use this code and place it at the bottom like my gearshift. I find this a lot easier to manage things so everything has it's own spot and not all mixed up in the media folder.
<MediaPath Path="aMaps/Smuggelers Valley.zip" DoPrepend="true" />
I do mods like this too.