I get it now. Using symmetry changes the vertex order, so the morph won't take.

I ran the script to uncompress all my obz files and tried a direct export from the runtime. I think Wings might be doing something to the files, because I imported the obj into Wings, and exported the head. When I attempted to import it into Sculptris, I got the error: "Too many points attached to a vertex (max 24)." So I am going to try to export from Poser as a morph target and see what happens there. I won't use symmetry in Sculptris, and just do a careful sculpt.

I will post my results.

If I had a nickle for ever time a woman told me to get lost, I could buy Manhattan.