actually, the only thing that matter inbetween version is if the game has rgss105.DLL includded. i think...
Actually not true. in RMXP legal version scripts use draw_frame_text whereas Postality Knights uses draw_text. If you use them visa versa you get a syntax error. Seeing as I don't have the legal version I can't really test it, but really all I did was in some line (I didn't actually put it into the thing at first cause there was a line easy to change) I made save disabled. There is a line that goes diabled = [ false, false, false, false, false, false ]
The fifth one is save, if you look at s5.