Apparently the conversion from standard graphic to .bum is a bit lossy. Anthony warns that his conversion from .bum to .bmp may not perfectly reproduce the original source graphic. Not sure there is a perfect way (yet?) to convert P4 .bum files into P5 or ProPack bump graphics. If you just rename as a .bmp, does Poser read the renamed file well? How does the end result look? Haven't played with it yet, but this will be an important question, going forward....

===========================sigline======================================================

Cage can be an opinionated jerk who posts without thinking.  He apologizes for this.  He's honestly not trying to be a turkeyhead.

Cage had some freebies, compatible with Poser 11 and below.  His Python scripts were saved at archive.org, along with the rest of the Morphography site, where they were hosted.