C:\misc\GPS\CRUN12_ORIG - input dir, where you have only 1 other dir with MMaper files,

C:\misc\GPS\MM_F_CRUN\ - output dir where vbs-script will collect files (in dir-levels) im MM1 format.
Draw attention that Move_Cruncher_Cache.vbs has now 2 output entries for dir C:\misc\GPS\MM_F_CRUN\ .

Next step - loading MM1 to MM2.
It's quite enough to rename PNG file to JPG, but you should to
recompile map2gdbm, consider my remarks:

http://www.internettablettalk.com/fo...t=14925&page=2

Other way - you can use free IrfanView program to convert PNG files to JPG (or gif - better).
IrfanView has "Batch conversion/rename" mode for easy converting a lot of files in any format.
Select 90% or 80% of quality for better compress files.
If you will use unchanged version of map2gdbm, files (tiles) should be less than 64k.