Tuning is fine all the way through. This is my first ever tab and I'm not ure at all 
about the chorus , but the Intro is correct =oD

After 2 bar drum
-Intro/VerseBridge

E-9/2-2-2-0-2-2-0-2-2-0-5-7-5-0-2-2-
A-----------------------------------
D-----------------------------------
G-----------------------------------

-Chorus

E-2-2-2-2-2-2-5-5-5-5-5-5-5-7-7-7-7-7-7-7
A----------------------------------------
D----------------------------------------
G----------------------------------------

Try to pu as much effort in as Ron Welty himself!
Thanks a lot guys,