this is only the rythem guitar part...ill try to get the lead later
and this is like painfuly simple,its pretty much just 4 chords in different orders
enjooooyyy :)

standard tuning
*=palm mute
~=let ring
intro:
*cool drum beat*

e------------------------------|
b------------------------------|
g------------------------------|
d------------------------------|
a--999999-999999--777555777555-|
e--777779-777779--555555555555-|x2

verse 1:
(play til "my heart is saying 'youre crazy'"
e-------------------------------|
b-------------------------------|
g-------------------------------|
d-------------------------------|
a-999999777777--777777555555----|
e-777777777777--555555555555----|

pre chorus:

e--------------------------|
b--------------------------|
g--------------------------|
d--------------------------|
a-55-55555555--77-77777777-|
e-55-55555555--55-55555555-|
     *** **       *** **
"maybe things are getting better..."
e----------|
b----------|
g----------|
d----------|
a-99999999-|
e-77777777-|
*gradually lift palm mute
"dont be gone when i get home..."

chorus:
(im not sure about the counting so you'll have to listen to the song)
e-------------------------------|
b-------------------------------|
g-------------------------------|
d-------------------------------|
a-99999999-997997-555555-557557-|
e-77777777-777777-555555-555555-|
"if i had to explain it..."
e----------|
b----------|
g----------|
d----------|
a-77777777-|
e-55555555-|
"its like youre falling in love while i just fall apart"
interlude:
(this is the only part that gets sorta confusing)
e-------------------------|
b-------------------------|
g-------------------------|
d-------------------------|
a-99997999997997997997997-|
e-77777777777777777777777-|

verse 2:

e--------------------|
b--------------------|
g--------------------|
d--------------------|
a-7~~~~~~~~9~~~~~~~~-|
e-5~~~~~~~~7~~~~~~~~-|
"ten minutes to downtown..."
e------------------|
b------------------|
g------------------|
d------------------|
a-7777777755555555-|
e-5555555555555555-|x2
  ****************
"maybe im bein selfish..."

(repeat chorus)

bridge:

e------------------|
b------------------|
g------------------|
d------------------|
a-9999777799997777-|
e-7777777777777777-|x4 (i think,u might wanna listen to the song...)

fill for the solo:

e---------------|
b---------------|
g---------------|
d---------------|
a-999999-775555-|
e-779999-555555-|

next is that one mellow part that doent really fit with the song,you dont necaserily 
have to play anything for this but just in case here you go:

e----------------|
b----------------|
g----------------|
d-77777777777777-|
a-55555555555555-|
e----------------|a bunch of times :P...
"sometimes i miss u more..."

play til song ends:

e---------------|
b---------------|
g---------------|
d---------------|
a-999999-777555-|
e-777999-555555-|

so yeah thats it...if you have any questions or corrections DONT HESITATE TO 
TELL/ASK,cuz its a saturday afternoon and i got woken up waaaaaay to early