I have followed RacerM's tutorial.
So I have renamed & repacked the files.
I was just thinking today that I might need to convert some more of the gmt's to gtr2 format.
I still don't know why the sky & skyboxi will not show up in 3dSim program?????
Even with a skyboxi from another working track.
Another problem may be with the textures format?
That would be a BIG problem, I don't have a DDS paint program. (and might not get one any time soon.)