This is the way Brendon plays the song acoustically. Transpose it +2 and you've 
got the original album tuning (which i also couldn't find a good version for). 
Enjoy playing PATD! :D

Tuning standard, no capo needed.

    E A D G B E
Gm: 3-5-5-3-3-3
Cm: 3-3-5-5-4-3
D7: 5-5-7-5-7-5

D#: x-6-8-8-8-6
A#: 6-8-8-7-6-6
F : 1-3-3-2-1-1

Piano intro

Gm
She paints her fingers with a close precision
Gm
He starts to notice empty bottles of gin
Cm                       D7
And takes a moment to assess the sin
       Gm             D7
She's paid for


Gm
A lonely speaker in a conversation
D#
Her words are spinning through his ears again
Cm                                 D7                   Gm              D7
There's nothing wrong with just a taste of what you've paid for


D#             A#
Say what you mean
             D7
Tell me I'm right
            Gm       F       D#
And let the sun rain down on me
           A#
Give me a sign
             D7
I want to believe


D#
Woah, Mona Lisa,
Gm                    F
You're guaranteed to run this town
D#   
Woah, Mona Lisa,
A#                 D7
I'd pay to see you frown


Gm Gm Cm D7


Gm
He senses something, call it desperation
Gm
Another dollar, another day
Cm                        D7
And if she had the proper words to say,
               Gm
She would tell him
               stop
But she'd have nothing left to sell him

Gm Gm Gm D7


D#             A#
Say what you mean
             D7
Tell me I'm right
            Gm       F       D#
And let the sun rain down on me
           A#
Give me a sign
             D7
I want to believe


D#
Woah, Mona Lisa,
Gm                    F
You're guaranteed to run this town
D#   
Woah, Mona Lisa,
A#                 D7
I'd pay to see you frown

Bridge

Gm   D# A#         D7
Mona Lisa, wear me out
Gm         D#     A#      D7
Pleased to please Ya    (..sa)
Gm   D# A#         D7
Mona Lisa, wear me out


D#             A#
Say what you mean
             D7
Tell me I'm right
            Gm       F       D#
And let the sun rain down on me
           A#
Give me a sign
             D7
I want to believe


D#
Woah, Mona Lisa,
Gm                    F
You're guaranteed to run this town
D#   
Woah, Mona Lisa,
A#                 D7
I'd pay to see you frown

D#
Say what you mean
             Gm
Tell me I'm right
             F               D#
And let the sun rain down on me
           A#
Give me a sign
            A# D7
I want to believe


Piano outro
There's nothing wrong with just a taste of what you've paid for...