The update did the trick! I would've posted this sooner, but I got sidetracked trying to improve the eyebrow shader, which seemed to create way too much shine in the newer version of Poser. It worked out well, though, since I think her new brows are even better than the ones she had originally, though I welcome your opinions too, since those will be helpful as I continue to refine this texture/shader set, hopefully for eventual sale.

If her skin looks lighter too, that's because I put the raw render through a tone-mapping procedure that I developed to emulate a more dynamic and realistic color space (i.e. what the Blender folks call "filmic").