ok so I just bought an iphone 3G off of craigslist. now I thought that I could unlock it because it was on OS 4.0.1. I installed ultrasn0w but when i put my sim card in, it just says "searching" where the bars are supposed to be. My baseband is 5.14.02 and my bootloader is 6.02. what are my options?? I've looked everywhere, but i just can't seem to find anyone with my exact bb and boot.