Downgrading apps

If you ahve the older app in a folder like yoru itunes library or backed up someware then do the following. 1. uninstall youtube from yoru phone. 2. connect your phone to your computer 3. launch itunes. 4. add ythe old youtube to yoru tines library. Itunes will complain but say to replace it. 5. Now choose the newly added youtube from your apps list under your device's name/apps radio button. Now synch your phone. Sometimes apps complain and will not be used until they are upgraded. There is no way to bypass this. So good luck.