[kapteeni]

no i mean the desert online Map, not the sandsoftime map!

OK! It must be desert map then. Do this:
Add these lines to SFS extractors filelist
maps/desert/map_c.tga
maps/desert/map_c.tga_table
Same way you can exctract all other tgas like map_h.tga etc...

ok but what for a fb_maps .SFS file?
i do not find a desert/map_c.tga with the sfs_extractor_v2.0_beta_11

You find it at fb_maps14. If you dont find it, PM me.