Hey, this my first tab too..  The other version is good for standard tuning but the 
actual tuning is slightly different. Amazing song.

Tuning  E
        A
        G
        D
        A
        D

I'm not overly sure of the chord names so I just put them down as the closest ones I 
think of. Here they are anyways:

      eAGDAD
F#m  (oo2444)
D    (oo2ooo)
A    (oo677o)
E    (oo122o)

I'm nearly sure this is damn near spot on from seein them play live.. enjoy!

Intro

F#m     D  repeat


Verse 1
F#m                       D                        F#m
      I left you just 2 months ago, in search of something
                           D
That I didn’t know (and now)

                                       F#m
Still don’t know (and I)

                  D                         F#m
Felt I had to let go, to find out for myself
                                D
So I could shelve  all my doubts,
                     F#m
Work it out (and you)


                    D                    F#m
You Understood so well, left me to myself, Now Im sure
       D                             F#m
That time will tell, but time can help
                   D                        F#m
So please don’t forget, you know I will regret
                       D
How unsure, I was then
                      A
Say theres something left

Chorus

A                     E
Mistakes have been made
                        F#m
two lives have been changed
                D
I know youve cried
                    A
Say its not too late

                      E
And I know why Im unwell
                   F#m
I want you for myself
                D
Ive seen both sides
                                    F#m
and Id choose love over anything else

D                                  F#m          D
             love over anything else

Verse 2 (is Same as verse one,just F#m and D again)

Chorus

(coming out of this chorus he changes the rythm a little bit but is still using just F#m 
D)then

Chorus


and thats it.cheers!