I initially plugged another copy of the texture into the ambient color, but the ENTIRE texture became ambient.  So I should just convert the texture to black and white before I plug?  I can do that.  Will be a while though, as I am in the middle of re-doing my OS.  Got a new version of some old software that for whatever reason doesn't play nice with 64-bit.  No matter, I don't have Poser Pro so I can't use the extra bittage anyway.