this is standard tuning, and i transcribed the mandolin part in the begginning to 
also the guitar part pretty much stays the same. the actual guitar part for the begginning is 
the same in the chorus.
email if you need it transcribed back into mandolin.

intro mandolin part for guitar
------------------------------------------------0--3-0-----------------------|
---------------------------------------------3---------3---------------------|
0--2--------------0----------0---------0--2--------------2-----------0-------|
------2---0----0----------0----0----0-----------------------2--0--2-----0--2-|
------------3--------3-----------3-------------------------------------------|
-----------------------------------------------------------------------------|


----------------------2--5--7----0------|
-------------------3----------------3---|
---------------------------------------2|
(2)-------------------------------------|
----------------------------------------|
----------------------------------------|
____________________________________________________________________________
begginning guitar part

---------------------------------------------0-------------0--------------|
--------------------------------------------------------------------------|
------5---------7------------3--------------------------5-----5-----------|
---5---------7------------3-------------3------------5-----------5--------|
3--------3-5---------1----------1----3------------3-----------------3--0--|
----------------------------------1---------------------------------------|

--------------3----------------------------0-------------|
------3--3/5---------------------------------------------|
---2------------------------------------5-----5----------|
2------------------------------------5-----------5-------|
----------------------------------3-----------------5----|
-------------------------------------------------------0-|


tab for the verse

-----------------------------------------------------------------------------|
-----------------------------------------------------------------------------|
5--5----7--7----3--3------------5--5--5--5--5--------5--5--5--5--5----5--5---|
5--5----7--7----3--3----3--3----5--5--5--5--5--------5--5--5--5--5----5--5---|
3--3----5--5----1--1----3--3----3--3--3--3--3--------3--3--3--3--3----3--5---|
------------------------1--1-------------------------------------------------|

--------------------------10fb-10--r10--8---------------------------------|
-------------------------------------------10--8--------------------------|
--7--7----3--3------------------------------------5--5----7--7----3--3----|
--7--7----3--3----3--3----------------------------5--5----7--7----3--3----|
--5--5----1--1----3--3----------------------------3--3----5--5----1--1----|
------------------1--1----------------------------------------------------|

-------------------------------------|
-------------------------------------|
--------5--5----4--4----2------------|
3--3----5--5----4--4----2------------|
3--3----3--3----2--2----0------------|
1--1-------------------------9\------|

for the chorus you play the guitar part of the begginning, but the chords you here are 
the mandolin