Altho much of the terms used here are well over my head, if I understand the gist of it, there's no way to simply open old PM docs in Scribus.
The as-of-yet unfinished project/add-ons would require having PM installed on the same Mac as Scribus, some sort of "export" & "import" coordination...?
I was trying to get away from paying big bucks for a new or newer version of PageMaker/InDesign, as I upgrade from a G4 Mac that can open PM5 in "Classic" to a 2yr old iMac with Mtn Lion. I was told Scribus would let me open PM files, tweak & print them. Perhaps I'm stuck with either farming out my once-a-year minor use of PM/ID, or scrounging up the money to get a copy of that one app?