How to update to iOS 7

Okay, so iOS 7 has been released today for a fact, I know September 18th is the date, and my friend sent a snapshot of his own phone having "iOS 7 update" on his general > about > Software Update.
we BOTH have iPhone 4. He already updated to iOS 7, and I'm trying to now. I keep going to "Software Update" and it keeps saying 6.1.3 is up to date. So I try iTunes and I have the latest iTune Software and I know because I just checked myself. So I click on "Update" on iTunes and it says it requires 11.0.5, which I have I just checked. And it keeps telling me I need it to update to iOS 7.
I'm guessing that so many people are updating they're limiting it right now, and maybe in like 30 minutes so many more people will continue to try.

Why is it doing this?

More Info:
Me and my friend both had a jailbroken iPhone, we both restored from factory settings, but I also restored from my latest iPhone backup. My iPhone is no longer jailbroken.

Added (1). My Carrier is Verizon.

Who is your service provider? If it still won't work i can post a link to download it online

My said tht to so what do I do on iTunes

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