Trying to update my iPhone 4 to iOS 7 beta 5, but not updating?

I downloaded the iOS 7 beta 5 CDMA file off of ios7stuff.com and I tried updating my phone with the file and my iTunes has been saying "Verifying updated iPhone software" for almost 20 minutes, and my phone screen turned black with the Apple and updating status bar but the update isn't starting. HELP!

and I do not have a UDID
I also have been using iOS 7 beta 3 for a while but it didn't update to beta 4 or 5 which is why I tried downloading beta 5 directly.