My friend and I did this today. We think it's right. so.. yeah.

RIFF ONE
G||------------------------------
D||------------------------------
A||------------7-6---------------
E||-5-5-5-5-5-5------------------

RIFF TWO
A||-------------7-6-5------------
E||-5-5-5-5-5-5------------------

RIFF THREE
A||------------7-6-5--3----------
E||-5-5-5-5-5-5--------5---------

RIFF FOUR
A||--------7/5-------------------
E||-5-5-5-5----------------------