MAHOUTSUKAI'S PROFILE

I'm not sure if I'm allowed to ask for any info about this,or if I'm in the correct section,but since you can't go commercial with RPG Maker 2000 I suppose I could give it a try..if I'm breaking any rules then I request a mod to close/delete this thread.

So supposedly there was a tool many years ago with which you could encrypt rm2k files to become unopenable in the editor.I had no experience with that when I was little(started messing with the editor and games only when I was 8!).
Fast forward to today where I'm a CS student,and I'm trying to beat this challenge.I've no intention to use this to steal any resource or cheat,but just for a mere look at some interesting events and map designing.I find it incredibly annoying that many good games are encrypted in an engine which doesn't allow you to sell anything..
After many hours of fiddling with hex and text editing,I figured out there are 2 kinds of rm2k encryption.
1)Hex editing,which I managed to bypass by editing files.Supposedly you edit the RPG_RT.exe with a hexeditor so that it can only recognize file extensions other than lmu lmt and ldb.Thus,you can only play the game and not open it (rm2k can't read other extensions)
2)Header editing.This I can't get past.I've ran on some games that after comparing them to unencrypted lmt files,have some strange string sequence in the beginning of the file eg EDUBRTIOM instead of the default LcfMapTree.After messing with some string sequences,I can get past the "Map Tree Data Break"but the RM2k editor crashes,presumably because of bad stream reading?

If anyone can share any knowledge on this,i'd be forever grateful.