No they are not the same thing. Jailbreaking is modifying the firmware to allow unsigned code to be run to gain access to files that Apple wouldn’t normally let you access. You need to jailbreak your iPhone before you can use the unlock. Since you're using an iPhone 3G, use redsn0w to jailbreak, then install ultrasn0w from Cydia to unlock.
09-26-2010 10:39 PM