Quote - So for those who make characters that are for say, V4, are just doing a new morph and UV Map for her face/body and painting and texturing it up in Photoshop (or whichever application)?   Just curious because tons of people sell or have for free their creations that are for V4.

I think I wasn't clear on what a UV Map is.  A UV map is just a 2-D, flattened-out representation of the model, which serves as a "template" for making textures for that model.  For instance, go here:

http://www.daz3d.com/i/3d-models/-/victoria-4-2?item=4783

and look on the right-hand side, near the bottom, under "Resources and Information"-- you'll see "texture template download."  Download those templatse and look at them in a paint program.  These are UV maps.

Those templates are used to create the texture maps for the model-- the diffuse (color) map, the bump and/or displacement map, the transparency map, etc.  So, in creating a new texture map for a model, you do not need a new UV map; you need to create a new texture map from the existing template.

Take a look at the templates, and then take a look at the texture maps for V4, and you'll see what I mean.