If you have Poser ProPack or Poser 5, you do NOT want to convert jpg bump maps to BUM files. You'll be consuming an excessive amount of hard drive space, and defeating one of the benefits of ProPack and Poser 5!!! I do believe CorrectReference will fix your problem. It's easier to run if you choose a folder at a time, rather than trying to run CorrectReference on all your Libraries at once.