@anna.cf
Maybe it's time to upgrade the ancient 1.1.4 firmware to the latest 2.2 firmware. There's a lot of guide at the pinned thread on how to upgrade, jailbreak and unlock. Take your time to read and understand the process before jumping into it. Then if there's anything thats not clear, just give a shout at the related thread and I can guarantee a lot of people will be helping you in your problem.