This one of my first tabs, so yeh criticism accepted.
OK well basically the chords though the song are just the barred chords: Bbm Ab Gb
That might help you to figure out the rest of the finger picking if not...
e-----6-----------4-----------2---------2------|
B----------------------------------------------|
G---------------5---5-------3---3-----3---3----|
D---8----8-------------------------------------|
A-8--------8--6--------6--4-------4-4-------4--|
E----------------------------------------------|
Ok thats about it, there are variations in the song but you will just have to have a play
around with those chords i mentioned