I have (I believe) downloaded all updated software requirements to enable auto sync between my devices through iCloud. However, when I go to enable iTunes I cannot access Preferences to do this? I cannot see anywhere to click on Preferences in my iTunes view. Any help would be appreciated.
On a Mac you can open iTunes' preferences via command-comma (or the iTunes drop-down menu at the top of iTunes) - automatic downloads is then on the Store tab on that. On your iOS devices it's in Settings > iTunes & App Stores (Settings > Store if they aren't on iOS 6_