Here's are instructions from Cryogen's website...it's a 5th gen tho...same concept for the 6th gen...but when I read his site, he didn't include anything about the resistors.

http://www.andrews.edu/~johnsonm/howto/blueLED.html

But here's a tip: After you sodder the bulb and wires together, test it with a 9v battery first before you put it on...that way you know if it's working or not.