one of the bug fixes a while back was supposed to address the interchange of presets between pc and mac.
IIRC, the trick is to just put the old presets files in the same folder as the factory presets?
I could be confusing it though. And to be fair I'm on the Waldorf Edition, which is similar but not the same as the PPG 3v.
Whatsoever thy hand findeth to do, do it with all thy might; for there is no work, nor device, nor knowledge, nor wisdom, in the grave