How to install older ios 7 beta?

I have a Verizon iPhone 4S and I use a neter pro/Gpp witch is a sim unlock so I can use t-mobile which I currently am. The problem is that I wanted to use the ios 7 beta but the unlock only works with ios 7 beta 4 and below.iTunes won't let me install beta 4 i get error 3194. How can I get beta 4 on my iphone?

Added (1). I don't care about warranty or anyof that stuff and I know whatim doing also I won't pay for the registration scams.

Put your charger in your USB port in your computer and do this its only 10 bucks http://ios7beta.net/

I warn you, anything that is outside of Apple that you put onto your phone voids warranties. So if its worth the risk then take it or be safe like me and wait til fall

Those registrations aren't scams. Your device will eventually get deactivated by Apple if you run iOS 7 without a registration with one of their developer accounts. It's $5 through a site like http://www.udid.in/ and they literally registered my 4S instantly.