You are going to have to use a modeling software that has UV mapping features (I think blender does that and it's free) or something like UVmapper (which has a free version).  Remember to make at least one material zone.

After that you need to go into the materials room and link the two via an image map.

WARK!

Thus Spoketh Winterclaw: a blog about a Winterclaw who speaks from time to time.

 

(using Poser Pro 2014 SR3, on 64 bit Win 7, poser units are inches.)