Okay, so this is a very easy song to play, I heard the acoustic verision here:
http://www.youtube.com/watch?v=Wo1gNtWs_So&feature=rec-fresh

I didnt make it myself, but I thought I'd tab it :)

It goes like this:
Capo on seventh, and all notes are played as if capo is zero:


     Em                   D                   C
E||---0----------------|--2-----------------|-0------------------|
B||---0----------------|--3-----------------|-1------------------|
G||---0----------------|--2-----------------|-0------------------|
D||---2----------------|--0-----------------|-0h2----------------|
A||---2----------------|--------------------|-3------------------|
E||---0----------------|--------------------|--------------------|

Thats the chord progression throughout the song, and the Em is played 2/4 of the time 
the same rythm... So if you played the Em 4 times you play the D in the same pace but only 
and then the C in the same pace but only twice, as said, watch to the video to understand.

Listen to the song for strum rythm :)