If you don't need a patch for it, then it means it was already patched by someone else :P Not that difficult to do it yourself, but I guess there's no point in making it more difficult for yourself
And heavens, why can't you just run it on your PS1/PS2? Is it because you want screenshots and stuff? In that case, you can just try to *cough*downloadtheNTSCversion*cough* and see if that works instead?