cod waw help?

i want to buy the cod waw map pack but i bought my game in australia and now i live in malaysia so i can't buy it from the australian psn store . so now i will buy it from the american psn store i bought a psn card. my question is will it work if i buy it from the american psn store on a australian version of the game? thx. rahul_rul210

to answer your last sentence, no, i had the same issue with ut3, i bought a us version of the game and i can't get teh awesome updates for it