Assignment 4 working on simulator, not on device

[Maximilian Tagher]

I just finished assignment 4, and everything works fine on the simulator. But when I run the app on my device, it doesn't display the Flickr photos. The app successfully gets location names, photo titles, etc. from Flickr, but shows only the UIScrollView background color when I actually try to view a photo. 

Has anyone else had this problem? I figure that if not, it must be a problem with my code.

The specific code I'm using to place the image is here: https://gist.github.com/1926754