Thanks.  This is useful to know. Could I convert any DS texture set to Poser this way?  Just change step 3 to Load DS MAT file.  I know it won't convert completely because the shader systems are different but I could just get material saved off to load in all the images, I'd be happy.  For instance, they didn't create DSON files for all the make-up options for V5 Bree (the default skin that comes with her) and I'd love to be able to use them easily.  The 20-step process they define on the DAZ website to create DSON files just stopped me in my tracks at step 1.

After some more reading, I found a totally easy and scriptless way to load different UV maps on Genesis.  It depends on which Genesis figure you load into Poser first.  Loading Genesis default female uses V4 maps, Genesis default male loads M4 maps, Genesis V5 loads V5 maps and Genesis M5 loads M5 maps.  I just tested it with the default female and was able to load my regular Poser V4 maps from SV7 Priscilla.

This will only works with the skin textures and doesn't have anything to do with the character morphs.  Some textures work better than others.  I tried it an old Poser 5 texture that was just mapped a image to the Diffuse channel and her face went totally black.  Since I'm not skilled enough with the Poser Material room yet, I gave up on that one and picked one that was optimized for Poser 9.