i have never seen a tab for this that is 100% correct
but now you will see one
Sum41 is sweet!!! YA CANADIAN PUNK!!! 
tuning (DADG)
intro (X4)
G------------------
D------------------
A------------------
D--0-22-2--0-2/7-7-

verse pt.1 (X2)
G-----------------------
D-----------------------
A-------2-2--00-0-------
D--22---------------6-4-

verse pt.2
G--------------------------------------
D--------------------------------------
A-------------------44444444-0000-0242-
D--2222222222222222--------------------

G--------------------------------
D-------------------66666666/9-7-
A--------------------------------
D--2222222222222222--------------

chorus
G-------------------------------------------------------------------------
D-676---------------------------------------------------------------------
A-----9-72-2--44-4/666-7---------------6-722-2-4-4/66-7---------------6-
D-------------------------66-777-666-77-------------------66-777-666-77---

bridge
G----------------------------------- ----  ----  ---- ------   
D----------------------------------- -  -  --    ----    -
A----------------------------------- ----  --       -    -
D--22-22-2-22-22--/7--22-22-2-22-22 -   - ----  ----    -

(dont count on me...its the point ure missin)
G---------------------------------------
D---------------------------------------
A-------2~--4~---0-2-4-------2~--4~---4-
D--2-2~-----------------2-2-------------

3rd verse (X2)
G-------------------------
D-------------------------
A-------------------------
D--0-0-x-0-2--2-2-0-2/7-7-

(but u dont make sense from all...)
G-------------------------------------------------------------------
D-------------------------------------------------------------------
A-------------------------------------------------------------------
D-0-x-0-2-2--2-0-2/7-7-0-2-2--0-2-r-0-2-r-0-2/7-7-2-2-2-0-2-7-7-r-

G------------------------------------
D------------------------------------
A-------------------------5555-55-7--
D-000000000000000000000000-----------

G--------------------------------------------------------------------
D--------------------------------------------------------------------
A--72-2--44-4/666-7---------------6-722-2-4-4/66-7---------------6-
D--------------------66-777-666-77-------------------66-777-666-77---

ending chorus
G--------------------------------------------------------------------------
D--------------------------------------------------------------------------
A-777-666-444--6-7-----------------4-6-777/11-11444-6-7---------------6-7-
D------------------66--77---666-7-----------------------66-777-6666-7------

outro (X4)         |
G------------------|---------
D------------------|---------
A------------------|---------
D--0-22-2--0-2/7-7-|-22-r-22-
                   |