the last step I'm talking about was in the "Post Jailbreaking 1.1.3 guide"
it got my iPhone back on the AT&T connection.
ooh. i didnt realize you were all the way at the end. i thought you were still trying to upgrade to 1.1.2. holding down the home and sleep/wake buttons (puts it into recovery mode), probably wasnt a good idea at the end.
however, you said it still has the AT&T connection though so i would try opening iNdependence to see if that kicks it out of recovery mode. if it says Slide to Unlock then yeah restore your iphone in itunes, but only if its asking you restore a backup, if it says to restore back to factory settings dont do it.
if iNdependence knocks the phone out of recovery mode but back to the emergency call screen, youll have to start over from the beginning again....