All I see in the screenshot you posted are the eye textures, which are applied by the files in the Eyes folder I think (I didn't make sure there was an exact one-to-one match). You are, however, right that there are more materials in the DAZ Studio presets than there are in the Poser companion files - some of those will be partial mats for adjusting the specular settings and so on, which don't work in Poser, but it does look as if there are some other options that would appear to have the potential to be PoserCFs but aren't.