How to change my the language in Modern Warfare 2 ?

Hi ,

My uncle bought me Call of duty: Modern warfare 2 but he bought the french version. I taught it was no problem because it will change if I change my PS3 systemlanguage. It don't , it stays at french. I don't understand french a bit and I want it to have english. Its a bit annoying to translate the perks to understand the meaning of it. :S

Is there a solution to my problem ? or When is Infinity ward releasing a english pack to change my MW2 language to english. :P It shouldn't be hard cuz they already did. They just must make it downloadable on PSN. lol.

Thanks in advance