there is only one way to tell between map designer maps and galaxyforge maps and that is the line that reads
useRandomGenerator FALSE (this is the GalaxyForge map type)
useRandomGenerator TRUE (this is the MapDesigner map type)
the line should be around the 26th to 30th line of the map file
unfortunately the maps use the SAME extension (ie .Galaxy), but NEED to live in the correct folder name based upon the useRandomGenerator line.
hope this info helps you get the maps working
harpo