It works through the Image Overlays. I don't remember the entire procedure off the top of my head at the moment, and, as I said previously, I've never had any luck with it as it doesn't seem to do a straight conversion in the same way that Terragen does. One thing I'm experimenting with right now is accomplishing this through Terragen to Wilbur to FTPro. Since Wilbur can read bmp files (exported from Terragen) and save them as mdr files (which can be read by FTPro), I am thinking that I might get a better result. If my experiments go well and produce results that look close to what they should be, I'll hammer out a tutorial on the process.

GW