I installed Poser 4 (named it Poser4only)and the upgrade. When I needed to convert Jpeg to Bum, I opened Poser4only, clicked on Render> materials> load(bump map) Search for the texture file you need in the PPP texture files, click on on the .bum.jpg, it will ask if you if you want to convert it to a .bum, click yes. Do it to all the bum.jpg files. when you are done, just go back to PPP, and you're in business. I know , I know PPP is suppose to recognize jpg, but some times it doesn't.