iTunes - adding content to third party app
Launch iTunes
Plug in iDevice, then...


select iDevice
Select Apps
Scroll down on the right-most scroll-bar until you see the File Sharing header
In that section, select your app

Then you can drag &amp; drop to the right section


I shrunk my iTunes window down as small as it would go to show all the info without taking up too much room in here



Rebooting the phone may help if connectivity is an issue.