Typically we don't assume piracy unless there's some outspoken grounds for such suspicions. Kanye's story seemed plausible enough to begin with, so I apologize for the less than warm welcome. We (as in I, really) do look down on piracy of these games, and after encountering it time and time again, our members are getting more careful before helping new users. They're usually more polite about it than accusing people of lying though, and the basic assumtion is supposed to be that the user is legit unless shown otherwise, not the other way around.
As voodoo47 points out, you basically just need the emulator, bios image (*cough* "illegal" *cough*), and the basic set of plugins. His info should be enough to get you running, but if you run into problems feel free to reply again in this topic.