Rayelljay,
Attached is the instruction page, I received with my 43 tooth pulley. It really doesn't tell you how to disassemble the heli and what needs to be done. Just placement of the ADDED quide and a note not to use the original washer.
However, I did find two videos on youtube that will aid you with your installation. Oh and your right, not much there on the installation sheet from Extreme. Like most products, the assume you know everything about everything. LOL It's a two part video.
Here they are:
http://youtube.com/watch?v=uET6jm_bx8Q
http://youtube.com/watch?v=URBH3lbqy3E
Hope this helps,
Dave / Choppersrule