when you got the Krazie ndure softmod installer package and extracted everything you should have had a Extras folder use a program called Qwix to create a ISO of that folder the burn it to a DVD-R disk and run it in the xbox look for an option that says nkpatcher. If you get to something that requires a password its AYBX
Now if with the chip in you had a F and G drive then you would select the .67 if you only had an F then it would be .06 just look through all the menu options until you find it