Stuffit Deluxe 4.0 with 68k, Stuffit Deluxe 4.5 with PPC, have a copy of Expander 5.5 for your 68k to get thru the newer sits, and use Expander 6.0 for your ppc for the newer ones. I always use the older method to stuff myself. But bear in mind this is just preferences, but the 4.0 package is cleaner and most everything works unless you run into, newer archives, which if you use Magic Menu, it will just "wiff" and do nothing, but then you just drag to Expander! This is in my opinion the least buggy version and has the most features, you have to turn OFF SpaceSaver cause that will just chew up your processor.