I did read your previous post, and I tried it your way, and still was unable to get the thing to work, so I had to go to the nearest AT&T store, only 5 miles away, and have them call to get the PUK code, and once they got it for me there in the store, I was able to enter it, and then manually reset the PIN, but unless I had gone to the store and gotten the PUK code, something I was not able to do over the phone with AT&T, not sure why, they never gave a real answer (felt like the operator was reading from her page as she explained <-- never a good sign BTW), and took the local tech calling AT&T direct to get my PUK, a number I alos immediately WROTE IT DOWN for any further issues with my IPad like this one, being as dependent on the 3G service when I am not at home. Any way, just sharing my experience and solution to my issue, hope it can help someone.
And, I know for those who are reading this and saying, my first error was allowing one of my children to play with in the first place, well......my response is simple, wait until you have a few kids, saying "no" just isn't as easy as you may think it is before you have a few of your own.... I still agree with you though 🙂