Ok Kinda still new to this tech game. I have a Mid 2010 Mac Book Pro 13inch Screen 2.5 GHz Intel Core15 4 GB Memory Mac OS X Lion 10.7.5 (11G63) I recently had to replace the hard drive cuz for whatever reason it crashed. I Previously had several pictures in iPhoto before the crash. That data is now on a USB stick. I reinstalled Mac OS X Lion 10.7.5 and am trying to save my photos. To no avail I can't get iPhoto back from my purchased section in the app store and do not have a time machine back up. DO I HAVE ANY CHANCE OF GETTING THESE PICS BACK?? and How? Also do I need to download a new OS?? I need a fix and recommendations for going forward. Primarily use the computer for the internet and photos. Especially with a new GoPRO Hero 4.