So I fixed the Crystal Ring bug,
Fixed the dark elf cave bug.
I looked into the ending bug, couldn't find anything, but it's rather minor and only one person as reported it.
But.. I tryied making the game disk and I got an error message, something about copying temp file failed, and it was the last thing it was copying.
I'm gonna look into this, but it might not get out til next monday, :( sorry guys. I'll see what I can do.
Could it be that you somehow deleted the files within C:\Windows\Temp folder? Or any other Temp folders? If so, i believe you just need to reinstall RPG Maker 2000 and it should then be fixed :)