Go to Renderosity Free Stuff, and do a search for hogwarden (he's the creator of CorrectReference and PBooost). The history of bump maps is rather confusing. There was a time when DAZ distributed the ".bum" format of bump maps with their textures. My Vicky and Mike 2 textures came that way. Then suddenly, I bought Stephanie's textures, and they needed to be converted from jpg. I don't recall a readme file that gave that info. No one can document a set point in time where the bump map procedure changed. We were just automatically supposed to know "everyone does this." I just wish someone would invent an "addition" to the installation process that would automatically offer to convert the jpg's to bum format for you. Some installation procedures are capable of seeing which version of Poser you use. They do install the appropriate files for that version. They do ask you to click OK first.