I need Help bad

I have a psp running a version 2.00 and i dont know how to run the games on it like ghostbusters and zombies ate my neigher.
can someone show me how to run emualtors on my psp for those to games ?

downgrade to 1.5 and upgrade to 2.71 SE-B we shave a downgrading tutorial section

if u dont get how to downgrade it i can help u on msn or just post again and ill give u a link to a downgrade if you dont have one