The chords at the beginning go like so....
E/--4---4---(b9)----7---7-|
B/--5---5---10----7---(b9)|
G/--6---6---11----8---(b9)|
D/--6---6---11----(b9)--(b9)|
A/--4---4---(b9)----(b9)--7-|
E/--------------7-------|
The the riff over the top of them is....
E/------------------------------|
B/---7p5---12p10----12p10--(b9)---|
G/---6-----11-------11-----(b9)---|
D/------------------------------|
A/------------------------------|
E/------------------------------|