Buying off US psn store

So I recently purchased rayman 2 from psn store for PS3 after loving it as a kid, but I didn't realise how shortened it was compared to other versions. I see rayman revolution is on the playstation store, but only the us. Why would it not be on the NZ store? Anyway I am able to buy and play that version instead?

@admotonic: You would need to create a US PSN account and add funds to it, its not that hard but people can be lazy.

@GTR12: I tried doing that, but when I tried to log in with my new account, it said I couldn't sign in with someone else's ID :/

@admotonic: Create a new user on the PS3, and sign-in with an existing account.

You cant just do it from the one user account which I think you are trying to do ;)