I'm fairly sure this is right, it sounds fine anyway.
If you want to know what it sounds like or what the notation for it is go to:
http://www.8notes.com/scores/5389.asp?ftype=gif
I haven't bothered with the timing or anything, because its pretty simple anyway. If you
stuck go to the link above and theres a little player that plays the tune exactly for you.
e|----------------------------------------------------|
B|----------------------------------------------------|
G|---------4-2-4-5-7-7-7-4-4-4-2-2-2-2-2-4-5-4-2-5-3--|
D|---5-5-5--------------------------------------------|
A|-5--------------------------------------------------|
E|----------------------------------------------------|
---------------------------------------------------|
---------------------------------------------------|
-----------4-2-4-5-7-7-7-4-4-2-2-4-2---------------|
-----5-5-5---------------------------5-5-5---------|
-5-5-----------------------------------------------|
---------------------------------------------------|
---------------------------------------------------|
---------------------------------------------------|
-7-4-2-4-5-4-2---4-4-4-7-5-4-2-2-2-----------------|
---------------5-----------------------------------|
---------------------------------------------------|
---------------------------------------------------|
---------------------------------------------------|
---------------------------------------------------|
-----------2-4-2-4-5-7-5-4-2--2-4-4-2--------------|
-----5-5-5----------------------------5-5-5--------|
-5-5-----------------------------------------------|
---------------------------------------------------|
There ya go.