App Store下载旧版本的App

I have a big problem. My app got accepted for an update. It downloads the old version even though it is showing the new screen shot of the new version. (No biggie, I have read that it sometimes does this.) But as soon as i download it on my iphone4, the store gives the little red badge showing an update is needed, which is for my app. I download the new update, It gives the first page's new graphics, but as soon as i try to do anything in the app, it crashes. But it downloads the correct version for my iPhone 5!! D: I have tested everything on both devices. And everything worked perfect. Thanks in advance!!!I have a big problem. My app got accepted for a