There's not really any guitar in this song, but I saw Simple plan play it live, so I 
to put all parts up.


Main riff goes like:

e|------------------------------------------------------------|
B|------------------------------------------------------------|
G|------------------------------------------------------------|
D|---------8-8-8-9-8-9-8-8-6-6-6-4-4--------------------------|
A|---6-6-6----------------------------------------------------|
D|------------------------------------------------------------|


Then it goes higher, I think like this (or in any variation u like to play it)

e|----------6-6-6-7-6-7-6-6-5-5-------------------------------|
B|----4-4-4-----------------------7-6-------------------------|
G|------------------------------------------------------------|
D|------------------------------------------------------------|
A|------------------------------------------------------------|
D|------------------------------------------------------------|


Next part:

e|------------------------------------------------------------|
B|------------------------------------------------------------|
G|------------------------------------------------------------|
D|--------8-8-6-6-4-6-4---------------------------------------|
A|----6-6-----------------------------------------------------|
D|------------------------------------------------------------|


And some chords:

e|------------------------------------------------------------|
B|------------------------------------------------------------|
G|--------------------6---------------------------------------|
D|--1--------4--------6--------6------------------------------|
A|--1--------4--------4--------6------------------------------|
D|--1--------4-----------------6------------------------------|

That's it! Play and enjoy