a few notes at the risk of being verbose:
i saw this song transcribed differently
on a website, with the capo on the 5th fret,
with the chords BmGDA, (and that's the way richard does it live
i believe) but i play along with the CD with no capo,
in the key of Em/G (i think that's right).
both ways sound right when played along with the CD,
but i like my way better.
just use an easy, free-picking style, listen to how richard plays,
and you'll see what i mean.
sorry, i don't write tab; i play by ear...
but it's really quite simple.
he adds a lot of hammer-ons and twiddly things in there.
really a pretty song.