i haven't synced my iPhone in about a month. so when i updated my iTunes then plugged my iPhone 3g into the USB port it said backing up as usual then it said removing . . . etc, now the apps that i bought between the month of not syncing have vanished from my iphone and my itunes. i would download them again to see if it would recognise i already downloaded the apps, but most were on sale, but if it doesnt work then i will pay full price, which i can not afford. anyhelp ? thanks.