Ok here's the deal. I have an official At&t Iphone 3g,bought it at the store and everything. So I decided to update to 2.2.1 thinking I didnt need to unlock and after jailbreaking ive lost all service. Is there a way to fix this?or is my official phone part of the unlocked deaths?

Restore to 2,21 and jailbrake again.
It is only YellowSn0w that doesn't work.

Makle sure you are using the latest quickpwn oor pwnage.

If you are using it with a legit AT&T contarct, just DFU restore to the actual Apple firmware and you'll be fine.
You can still jailbreak it then and continue to use it with AT&T. Dont check "avtivate iPhone" then when usin quickpwn.
The only backdraft if you updated to Apple Firmware 2.2.1 already is that there is no unlock (=use with other carriers) available right now.

But as far as I understand your post you are using the iPhone with AT&T contract you have - so no brick, no problem.

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iPhone 3GS factory unlocked (3.1.2; Blackra1n, Cydia, OpenSSH, custom 3.0 ipcc file (no sig), tethering hack by Dev team, 32 GB)
iPhone 3G (3.0.1; Redsn0w 0.8, Cydia, OpenSSH) 16 GB