hi i have a problem downloading firmware 3.1.2 !!! what i mean is that when the download i complete of the 3.1.2 firmware when i try to unzip it cant find the usual firmware icon that is the ipsw so i can use it with PT and jailbreak. i downloaded twice from trusted sources the firmware but the problem continues. do you have any idea why this is happening? am i doing something wrong? PS this is not the first time i try to jailbreak an iphone.