Hello! I'm a newbie but i have read bunch of topics on this and have decided to do the following procedure. Just checking if it's a good procedure for 3g unlock/jailbreak coz i don't wanna mess my phone

Current situation: phone is currently on 2.2, 02.28.0 baseband, completely new, not once connected to the computer, not unlocked or jailbroken. I'm using windows vista.

Ok, first i installed MacOS VMWare and made myself a custom restore ipsw using 2.2.1 firmware and PwnageTool.

Now, i installed iTunes and what i was gonna do next is Connect the phone to the computer, turn it off, hold the buttons and go to DFU mode. After that i'll start iTunes, shift+click on restore and restore this custom firmware i created.

All good so far?

After that process, i'll just install yellowsn0w, reset and the phone will be jailbroken / unlocked?

Huh! Please just tell me if this is a good procedure?

Thanks in advance!