Okay, so I have x plane for iPad, cracked from hackulo on cydia, and I want the Apollo ad on, and I would be perfectly happy to buy it, but, it says there was an unknown error when I try to buy it, so i can't, and i don't want the iPod version of x plane Apollo, and don't want to wait to see when, or if, there will be an iPad version of it. Please help, i want to know how to get ANY add-on to apps for free from cydia. (ex, skins for pocket god, and all that good stuff)