I have successfully created an application based on a UINavigationController that drills down a few levels from TableView to another TableView to a standard UIView. I now want to create a UITabBarController application, and have one of those tabbed views point to my existing UINavigationController that I have already setup...I am having an incredibly difficult time doing so however. I tried setting my existing UINavigationController to be reference from the actual view within the Tab Bar...but that didn't work. I then tried within interface builder...if you select the UITabBarController item attributes, you can change the various views to one of the following (View Controller, Navigation Controller, Table View Controller, or Image Picker Controller). I selected Navigation Controller, but then I can't figure out how to link that Navigation Controller object back to my existing classes. Any ideas or pointers would be great!