For the guys having problems with scenproc and osm. Have you tried other sources who provide shape files (shp) like geofabrik and then tried to make an own config file and running scenproc manually? I had the same problems but then I could make decent autogen for the Tampa Bay area. Unfortunately good content for Lake Havasu is nonexistent.
One thing still needs to be answered: Are custom zoom levels possible? When I configure it accordingly, ortho4xp-p2d downloads the right BPMs but it doesn't seem like they're being compiled into the bgls.
Daniel