If you have Poser 6 or 7 you are better off creating material Collections. basically create your material setup in poser then save to your material library and it will ask if you want to save as a single material or all the materials on the figure if you save all the materials that is saved as an .mc6 file. you can use this for Poser 6 or 7 or you can convert it to a pz2 extremely easily by editing the file. go into the .mc6 file with a text editor, and where it says mtlCollection change that to figure then resave the file to your pose library but change the extention from .mc6 to .pz2