[Scenario]

I'd doubt that you can get it on the Windows store. I'm pretty sure there's a fix for the Steam version of the game, but you'll want to look into that before you spend $10 buying it from Steam and not being able to use it with SA:MP. It's probably easier for you to just go buy it at a Gamestop or something, surely they would have this game available. Otherwise, you could always order it off of Amazon or something- it's probably cheaper to do it that way anyways.