This is the only useful info I could find on the net for playing this song. 
http://www.musicnotes.com/sheetmusic/mtdFPE.asp?ppn=MN0075335_D1

Despite showing guitar chords it's not so simply transferred to a guitar only 
arrangement.

Below is my attempt.

If you can read music, get the rough timing from the above link, otherwise just 
listen to the song.

Below is my attempt.

Capo 6 - Std Tuning

Sequence A

  Bmaj9 |  Bmaj9+D# | Bmaj9 | pick the 'da-de-da'

e|----0-------0----------0------3--5--3---|
B|----1-------1----------1----------------|
G|----0-------2----------0----------------|   Repeat this section twice to make 2 bars.
D|----2-------2----------2----------------|
A|----0-------0----------0----------------|
E|----1-------1----------1----------------|

Sequence B

 F#add9/A# | F#/A#  | F#add9/A# | F#/A#

e|----0-------0--------0----------0--|
B|----3-------1--------3----------1--|
G|----0-------0--------0----------0--|               This section is already 2 bars long.
D|----2-------2--------2----------2--|
A|----3-------3--------3----------3--|
E|----0-------0--------0----------0--|
  2 beats | 2 beats | 2 beats |  2 beats




Whole song literally goes Seq A, Seq B, Seq A, Seq B, etc

Let me know if you figure our how to do the whistle solo :P