Humble Indie Bundle Question

[stormy]

Hey all, I picked up the Humble Indie Bundle last night which has Penumbra: Overture in it, and after about an hour or two of gameplay, I'm really blown away by it. The premise sounded good in the description, but I hate to admit, I didn't think it would be anywhere near as good as it sounded. It is, and I'm greatful.

Now I see on the Frictional Games website that the Bundle comes with a code to pick up the Penumbra Collection for $5, and it sounds like an awesome deal, so I was just wondering if anyone knows where the code would be? I've received two emails, a paypal receipt and one with a download link, but I don't see the coupon. Is it maybe tucked away with the game's installed files?