Alistair Griffin - What If chords

Okay, you'll have to bear with me on this as I'm trying to work this out. But as I can't 
find a tab on chords anywhere I thought I'd try my own....but I'm on the train to work 
and don't have access to my guitar. 


I'm pretty sure it starts out A to D for the verse. 
[ Tab from: http://www.guitaretab.com/a/alistair-griffin/361420.html ]
Then there is an F#, E, D, A for the chorus. 

I know I'm missing out a lot but I figured there are so many more talented people out 
there that can hopefully pick something out of that and work it out. 

Hopefully it may help. 

Steve (asmadasahatter@live.co.uk)