That's an incredibly stupid question, do you think the script will work if you only insert half of it?
PK Edition is illegal, and if Blizzard is using the legal edition, you will need to get the legal edition. You may be able to change the program the game opens by opening Game.ini and changing the RGSS102E.dll to RGSS100J.dll, but I haven't done this in ages, so it may not work.