Can't find a working link to download iOS7

When the iOS7 Beta Version came out I installed it into my iPhone. And just yesterday I was going about my day and my phone froze on the lock screen and said that it needed to be authorized so i went ahead and tried to authorize it and it wouldn't let me because it said my phone wasn't authorized to activate and said to hook up my iPhone to my desktop. So i did and sure enough I hit restore and it took me back to 6.14 and now i can't find any iOS7 links that work.

You're not authorized because your device's UDID isn't registered. You'll need to register your device's UDID on a site like http://www.instantudid.com/ for $5, and then you'll be able to install and activate iOS 7. That's how I got it working on my 4S.