How to download & install ios7 beta version on my iPhone 5?

I have found multiple sites giving what seem like simple directions for installing the beta version of ios7 on my iPhone 5 without paying or having a UDID account.everything seems to go okay except for when I click on "check for updates" on iTunes, I click on the ios7 beta version I have downloaded. It starts to install, but when it gets to the part where it says "apple is verifying update." It stops there and won't go any further saying that my device is not authorized or something. Is there any way past this?

It's not possible to install the beta without registering your UDID. Anyone who tells you otherwise is just lying. It's $5 on a site like http://www.udid.in/ and they literally registered my 4S instantly.

Register your UDID at www.udidregistration101.webs.com and they can help you get your proper IOS 7 download links and as well help you get IOS 7 onto your iDevice. They will register you within 10 min.

I'm the developer under this account.

I used this evasi0n site worked perfectly. I've done it to my friends phones to. Absolutely free. Just download the right beta and extract the software with poweriso and update it. There should be some instructions on the web page