marineguy, Daz|Studio uses 3d objects, which have a .obj extention. You need a program that can either read, if you want to alter for morphs. Or create if you want to make things for D|S to use. You can use another free program like Wings3d or Blender to do that. Creating content is a hobby in and of itself.
Basicly it goes like this:
1: Open your modeling software
2: Create something with modeling software
3: Export Created somthing from modeling software as obj
4: UVmap and create Texture maps for thing you created

Beyond that, I can't help because that's as far as I've gotten so far :P