i fixed the tab that was already here a bit to how i am playing it. a video of me 
the tab can be found at my youtube channel: http://www.youtube.com/user/21Kyzix12

Intro (join on the third time the guitar plays it)
G|-----------------------|
D|-----------------------|
A|-7-7-7-7-5-5-5-5-------|
E|-----------------------|x1

Pre-Verse
G|---------------------------------|
D|-777777755555555-----------------|
A|----------------8888888877775555-|
E|---------------------------------|x2

Verse
G|-----------------------------------------------|
D|-----------------------------------------------|
A|-12\------12-12\------12-12\-----12-15\-----12-|
E|------0-4--------0-4---------0-4--------0-4----|

G|-----------------------------------------------|
D|-----------------------------------------------|
A|-12\------12-12\------12-15\-----12-12\-----12-|
E|------0-4--------0-4---------0-4--------0-4----|


Pre-Chorus (slide down on the last 5)
G|----------------------------------|
D|-7-7-7-7-5-5-5-5------------------|
A|-----------------8-8-8-8-7-7-5-5--|
E|----------------------------------|x2

Chorus
G|-------------------------------------|
D|-------------------------------------|
A|-------------------------------------|
E|-55555555555555559999999977777777----|x3

Chorus Cont.
G|------------------------|
D|------------------------|
A|------------------------|
E|-55555555555555559~-----|x1

Intro x1
Verse x2
Pre-Chorus x2
Chorus x5
Chorus Cont. x1

Breakdown x1
G|----------------------------------|
D|----------------------------------|
A|--------4p3~--43-------4p3~-------|
E|-5~-------------5~----------------|

Intro x1
Pre-Chorus x1

Outro
G|--------------------|
D|-7-7-7-7-5-5-5-5----|
A|-----------------5\-|
E|--------------------|

END