Update: Jailbreaking and Whited00r work, sorta. I got all that done but was still getting No Service. I need my phone active today so I just restored it back to the original firmware. I was originally going to update it so I could run a free texting app. Well, I searched the app store and found one that works with my phone! TextNow is a free text AND calling app. It gives you a new number to use, and as long as all your contacts use it, you shouldn't pay anything. There is a small ad at the bottom of the chat screen, but it's barely noticeable.
So, in theory, as long as all my contacts use the TextNow number and I used only free wifi, shouldn't I pay $0/month if I dropped down to the pay as you go on AirVoice?