A utube video shows how to use the Winpwn 2.0. The details shown from that video will definitely help a newbie on how he can unlock his Apple iphone 3G.

What is Winpwn 2.0?

Simply put, Winpwn is a tool used to hack or unlock an Apple itouch or iphone OS (firmware) if your USING WINDOWS XP or Microsoft OS. The iPhone Pwnage Tool, a hack which will let you, well, Pwn your iPhone, as they say, a qoutes from Wired Blog. :)

What You’ll Need

Make sure you have the following:

* An iPhone or iPod touch running either the 2.0 software
* Winpwn downloaded and installed on your computer
* A Windows machine. If you want to jailbreak on a Mac, check out how to jailbreak your iPhone 2.0 with the PwnageTool.

You’ll also need the iPhone or iPod touch 2.0 software update files. You can find the 3G version of iPhone 2.0 here, or grab the 2G software update here .

The above instructions was from Lifehacker post, check the whole steps here