I synced ipad to itunes to download some music to ipad. After the sync, all my apps (over 40) were deleted from ipad. I can see the apps on itunes, but it does not allow me to check the apps to sync and load back to ipad. How can I get the apps back from itune to ipad? Or do I have to purchase the apps again on ipad? Please help! I hate to lose my kid's saved drawings in the app!