To interject, BB VSS lights are too hot,  they were incorrectly created and need to be used at a lower intensity than originally thought.  You are better off creating your own.  Also, the use of gamma correction within PoserPro and PP2010 environment means lower light intensities for all lights incorporated into the scene.  The traditional 100% light intensity for daylight infinite or point light can be lowered to 75% to obtain the same results.  To cite an example, follow this link:

http://www.renderosity.com/mod/gallery/index.php?image_id=2152637&user_id=343328&np&np

Also, to prevent render choking, lower the diffuse_value on most figures and props in your scene, especially when using IDL in P8 and PP2010.  This type of restriction is already built into VSS, but it is well to note that most models are defaulted at 100%.  This is another cause contributing to wash outs, particularly in light colored textures.

Be aware, as Poser continues advance, many dated models, although excellently made, will need to be modified to work correctly with the newer render engines.  That simply means modifying Material Room node values, reconstructing node structures, and perhaps adding and deleting nodes to enhance particular effects.  This is my workflow, and I find it fascinating when I reconstruct shaders within the Material Room.  Such rework is reflected in the link above.  It is coming to the point when load and render will no longer work as expected, and many vendors will need to change the way they package their content.