Introduction is this:


E 5---0--------------------------------------------------|
B ---------2------5------3-----3-----5-----3------2------|
G ---------------------------------------------4-------2-|
D -------------------------------------------------------|
A -------------------------------------------------------|
E -------------------------------------------------------|

E 5---0--------------------------------------------------|
B ---------2------5------3-----3-----5-----3------2------|
G ---------------------------------------------4-------2-|
D -------------------------------------------------------|
A -------------------------------------------------------|
E -------------------------------------------------------|

Then the chords of the song are A D and E

I checked out the other one, it was a little confusing, the chords I thought were right 
it, but I think my intro sounds a little more on target than the other one. Enjoy