Have you considered Blacksmith3D Morph v3.3 or is it not advanced enough to do what you want? It can import (most?) Poser CR2 files directly. The program also has import and export abilities that may not have the same problems that Poser has. The program is still available at DAZ3D for 50% off (until 1/31/10), and DAZ3D has a 30-day money back guarantee. If it will not do what you need, you can return it.

http://www.daz3d.com/i/3d-models/0/blacksmith3d-morph-v3?item=10114&cat=&_m=d

Blacksmith3D-Paint v3.3 is also still on sale, has some UV abilities, and can export CR2/OBJ files directly to 3D Studio Max.

http://www.daz3d.com/i/3d-models/0/blacksmith3d-paint-v3?item=9966&cat=&_m=d

lmk

Probably edited for spelling, grammer, punctuation, or typos.