WTF...What the hell is the point of having a Shmup scoring contest. If you're just going to allow people to use autofire through MAME and their HRAPs.
So the Bastards were cheating eh?
THE BEST METHOD to run PSX games (and everything else for that matter) is via Retroarch - http://buildbot.libretro.com/nightly/
If you have any questions on how to set it up on Windows please feel free to ask, its very easy.