[fly_zo]

..well, im not sure .... which format is that map (extension) ? we all are using srtm files ( satellite images) with microDEM

so i suggest you do the same ....

select area you want at this site and get all srtm files needed ( just click them on the map greed ...make sure multiple selection is enabled)

http://srtm.csi.cgiar.org/SELECTION/inputCoord.asp


merge them in microDEM and edit as CW explains in tutorial ( make sure you have his color data tables installed )

later on you can crop it in graphic editor to get desired area .....


cheers
Z