I would load up the textures in Poser 7 and save a material collection. I believe that can be selective in what materials get saved. Then convert the mc6 file to a pz2 in wordpad , and maybe compare the two files.

here is the start of amat pose file
{

version
    {
    number 7
    }
figure
    {
    material 1_EyeSocket
        {
        KdColor 1 1 1 1

two { after figure is wrong.