I was really frustrated to only find tabs out there requiring a 
capo, hence (cheating), and really impractical for a lot of us 
who like to pick up a guitar and just play something, even if 
it's just another guitar at someone's home. It was indeed difficult 
to transpose a piano song to guitar, but this works really well. 

The original is in Bb, so you will have to either uptune your 
guitar a half step to F if you want to play along with the song,
 otherwise you're technically playing it in the Key of A, which 
is completely unnoticeable around a campfire. 

The verses are all over A major and A sus2, with the bass notes 
played along with it. Use the 3 finger form for A major so you 
can lift finger 3 to make it A sus2 and also play the bass note 
on fret 4 (with that 3rd finger or the pinky. You'll also want 
to be creative and use your thumb for the bass note on the E 
string for fret 2 when it happens. Anyone with some experience 
should be familiar and able to do this in a pinch, after all it's 
a piano song! Play the notes of the chords individually starting
 with the bass note, let it and all notes ring. 

Verses:

A         G#/Asus2  F#/Asus2 G#/Asus2  A(starts repeat)
 
--0------------------0----------------0---------------------
--2---------0--------0--------0-------2---------------------
--2---------2--------2--------2-------2---------------------
--2---------2--------2--------2-------2---------------------
--0---------x--------x--------x-------0---------------------
------------4--------2--------4-----------------------------
                   Thumb!


Chorus: This is much easier now, strum all.


D        E       F#min   (don't know..just do it) (repeat)

--2------0--------2-----------2--------------------------
--3------0--------2-----------2--------------------------
--2------1--------2-----------2--------------------------
--0------2--------4-----------2--------------------------
--0------2--------4-----------2--------------------------
--x------0--------2-----------4--------------------------


Hope this helps!

robrudock@hotmail.com 
http://www.myspace.com/robrudock