This tab is correct and was based on watching the band play live at numerous occasions

Chords Used

D5   (x577xx)
A5   (577xxx)
B5   (799xxx)
A#5  (688xxx)

Intro/Verse (Rex)
-----------

E--------------------|--------------------|--------------------|---------------------|
B--------------------|--------------------|--------------------|---------------------|
G--------------------|--------------------|--------------------|---------------------|
D------7-------------|--------------------|------7-------------|---------------------|
A--5-5---5-------7---|------9---------7---|--5-5---5-------7---|------9---9^8---8^7--|
E------------5-5---5-|--7-7---7---5-5---5-|------------5-5---5-|--7-7---7-----6----5-|

And if I couldn't attain 
All I need to explain 
Would she even look me in the eye again 
She sits back and ignores 
My need to adore 
Intimidations got me down again 
She's only 18 but such a beautiful dream (intro/verse prgression stops and then...)
 
E---------------------------|
B---------------------------|
G---------------------------|
D---------------------------|
A--5-5----------------------|
E----------------------7-7--|
All she needs is some chloroform 
And she'll be mine 

Pre-chorus
----------

E---------5-----------|
B-----5-7---7--5-7-5--|
G--7------------------|
D---------------------|
A---------------------|
E---------------------|  (repeat 2x over Ah's...)
Ah Ah Ah Ah...

Chorus
-------
D5      A5      D5  A5               D5 
    A5       B5 ^  A#5 ^  A5     (slide)
And take her back 


Verse 2 (same progression as verse 1)
-------

Every once in a while 
I catch a strut and a smile 
Maybe rejection is the high 
That keeps me coming here 
I need some compassion but she's 
Laughing at the nervousness 
I feel whenever she is around 
And I can't see just how real 
Is the charm no I don't mean 
Her no harm despite my heart 
And the challenge while she's lying here 

Prechorus (same progression)
---------

Ah Ah Ah Ah....

Chorus (same progression)
------

And take her back 
(repeat 1 more time) 

Bridge
---------

(Rex)   D5        |       D5        |       B5        |      A5 


(Cory)
E--------5--5-----|--------5--5-----|--------5--5-----|--------5--5-----|
B--7--7-----------|--7--7-----------|--7--7-----------|--7--7-----------|
G--------------7--|--------------7--|--------------7--|--------------7--|
D-----------------|-----------------|-----------------|-----------------|
A-----------------|-----------------|-----------------|-----------------|
E-----------------|-----------------|-----------------|-----------------|

D5
So just walk on by 
B5          A5           B5        A5
I  can see today is like any other day 
A5
But it seems brighter than it was before 
D5
I just can't believe that its 
B5       A5          B5      A5
Not the same no it's not the same 
A5                                 D5 (hold and let ring out)
It will never be the same for me again 

Outro
-----

And take her back 

And take her back 

And take her back 

And take her back 

====