Apple, I tried using both Jame's versions low and high resolution and both failed for me too.
The hi res model causes Sculptris to close immediately, polys are too high.  The low resolution model appears to either tear or deform the polys beyond Poser limits.

The only model that I have found (so far) is the high res V3 from DAZ.  The poly count is low enough to be accepted by Sculptris and high enough to grab and move around and still be accepted by Poser.

I know you want James, its a great model.  However try V3 (if you don't have the model, its free from DAZ).

Finding out more about what Scupltris/Poser can and can't do daily

Laurie if you got P6 to work, please tell us how.  Jan