Your Poser 11 python scripts almost certainly won't run in Poser 13. I bought Poser 13 and went back to Poser 11 Pro because I was tired of having to do some things using Python in Poser 11 and then having to switch to Poser 13. One big change that made the new version less wieldy was that the ykilled the simple tab in the material room. I use that all the time and go into advanced only to apply a material to all the material zones. You'll have to screw around with nodes instead. Have fun.