Greetings - Here's the situation. My phone has v2.2.1 - Modem FW 02.30.03, its been jailbroken. I followed the tutorial on iClarified using redsn0w to upgrade to v3.0, that didnt work. So I restored the phone back to 2.2.1. Then I tried to downgrade to v2.2.0 - Modem FW 02.28.00 but received an error 1013. I've tried upgrading the phone from 2.2.1 to 3.0 at least 7 times but still errors out. Please help me!!!!