Okay .here goes. If you go to a site called MW GRAPHICS. iwill try to get you the thread for it.the program you need is fs terrain by Martin Wright .ITS fantastic. I used it for fs 2002.you need to downoad HGT data from NASA. and you need dted program from MW GRAPHICS to convert the HGT data to a tpr for use with fs terrain.Its a while since ive used it ,but it does work.us pohms arent all that bad .GOOD LUCK!