iPod Touch 2nd Gen – Broken Lens

I dropped my new iPod Touch 2nd Gen on a bar table. Just about 6 inches fall but landed on its bottom left corner end and created hairline cracks on the glass lens. IPod working perfectly well. It’s just distracting looking through a cracked lens.

I found an ebay store selling digitizer+lens for $50. However, have no idea how to pry it open. I want to try to open it before buying the part. Anybody have idea where and how to pry it open. Thanks.