The other tabs are incorrect.  The first couple seconds of the music video actually show 
what Ryan plays.  Not only is this more accurate, but also easier.

Chords (repeat whole song) Am C F G#

First riff (intro)

e|--------------------------------------------------------------------------------|
B|--------------------------------------------------------------------------------|
G|--------------------------------------------------------------------------------|
D|7----7----7----7----7----7----7----7----7----7----7----7----7----7----7----7----|
A|--10---10---10---10------------------11---8----8----8----8----11---11---11---11-|
E|----------------------8----8----8-----------------------------------------------|

Second riff (starts when bass comes in)

e|----------------------------------------------------------------------------------------|
B|----------------------------------------------------------------------------------------|
G|----------------------------------------------------------------------------------------|
D|7----7----7-----------7----7------------7--10---7----7----7----7----7----7----7----7----|
A|--10---10------7--10----10------7---10------------8----8----8----8----11---11---11---11-|
E|------------8-----------------8---------------------------------------------------------|

Lead riff (full band)

e|-------------------------------------------------------------------7---------7---------------|
B|-------------8--10--------------------8--10------------------8--10----------------10----8----|
G|-9----9--10-----------9----9--9--10----------10----10----10-------------8------------------9-|
D|---------------------------------------------------------------------------------------------|
A|---------------------------------------------------------------------------------------------|
E|---------------------------------------------------------------------------------------------|

e|-------------------------------------------------------------------7-------------------------|
B|-------------8--10--------------------8--10------------------8--10---------------------------|
G|-9----9--10-----------9----9--9--10----------10----10----10-------------8----8--8--8--8--8---|
D|---------------------------------------------------------------------------------------------|
A|---------------------------------------------------------------------------------------------|
E|---------------------------------------------------------------------------------------------|

Chorus section (No guitar the first time chorus section plays)

e|-----------------------------------------|
B|-----------------------------------------|
G|-----------------------------------------|
D|-7--7------10-10-----3--3------6--6------|
A|-7--7------10-10-----3--3------6--6------|
E|-5--5------8--8------1--1------4--4------|

Key change

e|----------------------------------------------------------------------------------------|
B|----------------------------------------------------------------------------------------|
G|----------------------------------------------------------------------------------------|
D|8----8----8-----------8----8------------8--11---8----8----8----8----8----8----8----8----|
A|--11---11------8--11----11------8---11------------9----9----9----9----12---12---12---12-|
E|------------9-----------------9---------------------------------------------------------|

There's a little riff Ryan play in the verse, but I can't make it out right now.  I'll 
give it a shot later.