When I ran Applejack on the G3 Pismo PowerBook, I couldn't get it to work, after each keypress when trying to enter the word applejack, a zero would appear & the command wasn't recognised. Then I realised it was version 1.4, intended for Jaguar (10.2) & Panther (10.3) versions of OS X.
Installing version 1.6 of Applejack fixed the problem, it's in used now.