Ok, I have looked on all the tabs submitted to this site and haven't found one really correct one.  Granted, they have been close, but no detail is really given.  Here I present My Version, which should be fairly easy... e-mail Channelwood14@aol.com if you have comments or questions.  This is my first submitted tab, so go easy on me!

Drop D Tuning (DADGBe)

Riff A
e:----------------------------------------------------------|
B:----------------------------------------------------------|
G:---------------------------------3-----5-------2-----5----|
D:------------------4--------5-----3-----5-------2-----5----|
A:----------4---0-2-----0-4-5--0-1-1/3-3-3---0---0/3-3-3-0--|
D:-0----0-4------------------------------------------------0|
                            P.M.|-----------------------|

Riff B (I'm so happy...)
e:-----------------------------------------------------------|
B:-----------------------------------------------------5-----|
G:--------------------------------3-----5--------2-----5-----|
D:------------------4--------5-----3---5---------2---5-------|
A:----------4---0-2-----0-4-5--0-1----3-----0----0/3-----0---|
D:-0----0-4------------------------------------------------0-|

Chorus (yeah yeah yeah...)
e:-------------------------------------------------------|
B:-------------------------------------------------------|
G:---------------4-4-4---------3-3--5-5-5----2-2/5-5-5---|
D:-0-0-0--4-4-4--4-4-4--5-5-5--3-3--5-5-5----2-2/5-5-5---|
A:-0-0-0--4-4-4--2-2-2--5-5-5--1-1--3-3-3-0--0-0/3-3-3---|
D:-0-0-0--4-4-4---------5-5-5----------------------------|

Chorus pt. 2 (I like it...)

e:-------------------------|
B:-------------------------|
G:-------------------------|
D:-5-5-0-8-8-8--5-5-0-8-8--|
A:-5-5-0-8-8-8--5-5-0-8-8--|
D:-5-5-0-8-8-8--5-5-0-8-8--|