My usual answer is to convert the png's to rsr with P3dO Explorer, but since it isn't working well for you ... ask someone really nicely to convert them for you? Or keep a bare-bones version of Poser 4.03 installed on your system, with most of the content removed, for the singular purpose of rsr creation. I'd happily volunteer for occasional conversion duty. It's the least I could do to help, after all you've contributed to the community.