I am currently using the 3d celebrity Rebbeca texture.
In the preview window she clearly has pubic hair, and in the properties I have the pubic hair set to 1, but even  if I render in the highest settings in Poser Pro, there is no sign of it in the final render.

Am I missing something please?

What do you see in the Materials Room transparency channel?    Jan

Heres a screenshot

I have messed with the transparence settings but get no difference in the renders, just the preview.

Can anyone help?

Quote - I have messed with the transparence settings but get no difference in the renders, just the preview.

Can anyone help?

What happens if you remove the transparency map?  Could it be "backwards?"

Unfortunately we can't see the entire image of your transparency map, so we really can't determine if there is actually pubic hair painted into it. 
Firstly, check your texture map for the model and make certain that pubic hair is clearly present.
Secondly, if pubic area is present, create an image_map of your body texture under PubicHair in the material room and plug that into the Diffuse_Color.  Change the Diffuse-Color to white.
Render and see if that makes a difference.

I think we are trying to duplicate your problem.  Can you show us what the texture looks like on the node (expand the node) and what it looks like on the Poser Surface (that's cut off).  On mine I deleted the transparency  channel node and I still got it.

-what happens if you use a different texture on just the hip area?  If you get  the hair, then check and compare the texture maps.  

This may be a challenge for all of us---Jan  

Hborre, you beat me to it  (was composing when you uploaded).  Jan

Sorry Jan, looks like we were thinking alone the same path.

This is the full MAterial room pic.
The body texture has no hair. The only place I see it is in the preview window.
Does this shed any light.
I tried pluging this into the difuse dolor as suggested and set it to white. The few whisps I can see in a line up the (ahem) middle were light grey

Materials Room,  located in your Image Map node, there are two little icons, one looks like an old fashion washboard, there other a shut eye, click on the shut eye which will expand that node to view what is actual pumped into the transparency channel (it should be the pubic hair-sometimes you get a white screen .  In that case,  the texture map didn't load correctly.  Try deleting that node and start fresh (the new node >2D Textures>image_map, then get the map again).  Jan

I think the material room approach is wrong.  The Trans_map is correctly attached to the PoserSurface.  I believe the problem is the GenMorph in properties.  Reset that PubicHair morph to 0 and retry the render.