Bit tricky to get all the timings etc correct on these types of tab, but I've had 
a crack at it. Just have a listen to the song to get it all in the correct place.

The Chord progression is simply, A G F G all the way through the song so all three 
parts will sound ok over any part of the song.

Part 1

G|-----2---4-2-0--|----------------|----------------|----------------|
D|---2------------|-----7---5----5-|-----5---3------|------7---5---5-|
A|-0--------------|---5---------5-5|---3---------5--|---5---------5-5|
E|----------------|-3--------------|-1--------------|-3--------------|
   1 & 2 & 3 & 4 &  1 & 2 & 3 & 4 &  1 & 2 & 3 & 4 &  1 & 2 & 3 & 4 & 

Part 2

G|----------------|----------------|----------------|----------------|
D|----------------|----------------|----------------|----------------|
A|-0-0000----0000-|----------------|----------------|----------------|
E|----------------|-3-3333----3333-|-1-1111----1111-|-3-3333----3333-|
   1 & 2 & 3 & 4 &  1 & 2 & 3 & 4 &  1 & 2 & 3 & 4 &  1 & 2 & 3 & 4 &

Part 3

G|----------------|----------------|----------------|----------------|
D|----------------|----------------|----------------|----------------|
A|-0--------------|----------------|----------------|----------------|
E|----------------|-3--------------|-1--------------|-3--------------|
   
Part 1 (x2)
Part 2 (x2)

Part 1 (x2)
Part 2 (x2)

Part 1 (x3)

Then theres a break in the bass untill he sings
"So make the most of every day ...."

Part 3 (x1, start as he sings the word "So")

Part 1 (repeat to the end of the song)