i was pretty sure i umgraded the software, for the iphone to 1.1.4 from 1.1.3, and unlocked it using iliberty, i did this a long time ago, well not till recently i felt like checking my settings, and i noticed it said 1.1.3, and im like wth, so i plug my phone to my computer, and open itunes, and it also saids 1.1.3, so when i click to check for updates, and this is what i get look at the pic !
Ther is a compatability patch to intall 1.1.3 apps onto a phone that has 1.1.4 firmware. I bet you have that patch installed and must uninstall for it to show correct firmware. Also when you install patch it recomends that you uninstall after use.