Damn, my ff5 copy in the mail was a fake. well, at least I got a refund and found a seller with a legit copy and pics to prove it.
Just for kicks, got any pics of that fake cart?
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.