oh yes... I forgot that 'z' meant 'compressed'.. no that's not what I want.  smiles
So, say I made a material (png or jpg)in photoshop, I would then go into the material room in Poser.... apply the material onto something, say a dress,.. play with all the different settings (nodes?) until I had something I liked and then save it?  What do I do with the dress that I applied the material to, as I don't want that?