I was curious about the artifacts on the neck and thought maybe it could pertain to this thread.
http://www.renderosity.com/mod/forumpro/showthread.php?thread_id=2704186

Anyway,  on to the specular map.  Load the color map into photoshop and greyscale it then in Poser apply the greyscale map to specular with the following settings.  Specular value 0.8  and Highlight size 0.1  Post the results.