On my iPod touch at the app store- my corus radio app can be updated, so i went to it and installed/update button it asks me for my itunes password, i type it in. Now it's not updating, and instead the app is in that transparent installing mode, but without any progress whatsoever. This seemed to happen the last few times i downloaded app updates. (I fixed it by deleting then, and downloading them again). I know i'm not suppose to talk about it, but for some applications I HAVE save files and i dont want to delete them, so i downloaded updated ipas for them (because the above method wouldnt work), yet they still wont be updated into my iPod, because of some error. What's going on?