i think it is a G#m but im not sure, i spent ages looking. its on the fourth fret barre 
as if your playing an Em. also if the way the chord are placed in the chorus confuses 
listen to the rythm of the songs guitars on the song, that sould make it fairly straight forward.

B
Another night, another year thats gone
Abm
Raise your glass, I'm not home tonight
B
Nothings changed but everything is differnt
Abm
Getting cold in the bus stop light
B
All the days, all the times we spent
Abm
making plans for another life
B
Staring out of a back seat window,
Abm
making cuts with a plastic knife

E          F#   Abm             B
This dirty heart still likes to beat
E            F#
Back in your arms
Abm
Back on your street

B                     F#    Abm
These open wounds you gave me
             F#
These broken bones will take me
B                       F#m    Abm                     B
Crawling on through the debris of my dirty little heart


B
Another flag stone, I don't belong
Abm
An empty glass still not home tonight
B
I look for change but only finding difference
Abm
I'm growing old in the glare of the spot light
B
All those nights, all the hearts I've haunted
Abm
All the memories we've shared
B
I wonder if this will ever be different
Abm
I wonder if we will ever be spared


E          F#   Abm             B
This dirty heart still likes to beat
E            F#
Back in your arms
Abm
Back on your street


B                     F#    Abm
These open wounds you gave me
             F#
These broken bones will take me
B                       F#m    Abm                     B
Crawling on through the debris of my dirty little heart

B                     F#    Abm
These open wounds you gave me
             F#
These broken bones will take me
B                       F#m    Abm                     B
Crawling on through the debris of my dirty little heart

(SOLO) (B, F#, E, Abm)

B                     F#    Abm
These open wounds you gave me
             F#
These broken bones will take me
B                       F#m    Abm                     B
Crawling on through the debris of my dirty little heart

B                     F#    Abm
These open wounds you gave me
             F#
These broken bones will take me
B                       F#m    Abm                     
(let ring)
Crawling on through the debris of my dirty little heart