It isn't even a photoshop, just a simple code change to the html. Like so:
http://img690.imageshack.us/img690/5563/5a8ef7b371d04d9c96efa63.png = http://img853.imageshack.us/img853/623/e8a075eade2b446892cc2f7.png
Also, in that guys photo, he has notepad open which probably hints that he was using it to edit the code. School boy error. I know everyone knew it was a fake just highlighting the correct way in which it was done