If you watch the music video for the acoustic song, he only plays these four 
chords, so I'm pretty fang sure this is right =). The entire Acoustic song is:

      F        C         G        Am


F             C                 G
Used to come around here every day
          Am
Now you're breakin'
F             C                 G
Used to be the one that is not ashamed
          Am
Now you shamin'
F             C          G
Lost in all the wars we fought
       Am
Never sorrow
F             C                      G
Now everything about you wears the scars
       Am
Of tomorrow
      F      C         G        Am
And I wonder where you are
      F      C            G
Now I wonder where you..
Am
Are
[ooooh]

Take yourself down
Pick yourself up
Everything changed when you got along
7 point 1 took it all down
Suddenly you can't even be found
I said all night long

        F
Missing person's in the window
C
Staring at me
G                    Am
Saying things I cant hear
          F
A missing person's in the window
C
Staring at me
G                     Am
Haven't seen them in years