i just went by the directions when i was working on upgrading my phone to JTs 6.5 WinMo ROM. it seemed pretty easy just made sure i had an active sync connection and then ran the unlocker. It showed a screen in kind of a DOS looking format and told you exactly what to do each step. the only part that was difficult was it said to disconnect the usb cable and reconnect it right away. on this part its just a quick pull it out and put it back. it will still stop the active sync if i remember right but then it will tell you what all to do and will finish unlocking the phone. here is the link to the thread of the unlocker. It sounds harder than it really was, you just need to be confident while doing the steps.
http://forum.ppcgeeks.com/showthread.php?t=20370