Okay, I have a 2nd Generation iPOD touch. I lost it a year ago, and I found it this morning. But, I just knew that the newest firmware right now is 4.1 . Do I have to upgrade the firmware, from the oldest one to the newest one, one by one, or I can just download the 4.1 firmware right away? my plan was after I update the ipod, I want to jailbreak it. But I'm having trouble updating it.