Hi. I managed to patch the iso using PPF-O-Matic 3.0 under Tiger 10.4.10. It was quite tricky because the program would quit every time I tried to browse for the .ppf file. The solution was to right click the .ppf file --> open with --> PPF-O-Matic. Then, simply browse for the iso to patch and click apply. As for the link, I don't remember where I downloaded it from, I'll try to find it again and post the link.
P.S.: try here: http://www.megagames.com/console/cgi-bin/dl.cgi?id=console&file=pdx-pmc3!zip