It's just a static image of Osama bin Laden sitting on the floor of his compound, watching a junky little TV. You know the photo: It's from one of the videos they found during the raid, and released to the media last weekend.
But on the website, you type in the URL of whatever YouTube video you want to appear on the little screen Osama's bin watchin', and it appears on his TV. Just Google "What's Osama Bin Watchin'" or go to tomscott.com/osama.