The intro is easy, it just alternates between G and C fairly regularly.

The rest of the song sometimes alternates between G and C, but the rhythm is different. 
C is played just in passing really, then goes back to the G before starting the bar 
Listen carefully to the song and you'll get it.

The D / Dsus2 / D part is played similarly, but again you need to listed to the song.

The final part seems to go from D to Dsus2 to C in a similar rhythm

One final note, I know this isn't 100% but it's pretty good, and better than nothing. 
tab isn't so good for playing along to the song (it sounds strange somehow) but it does 
if you do it yourself


Intro: G C

Song:
          G/C/G
those memories
             G/C/G
of you still haunt me
      G/C/G
every night
           D/Dsus2/D
when i lay down
            C
i'll always love you
       G/C/G
little darlin'
          D/Dsus2/C
until the day
            G/C/G
they lay me down


             G/C/G
in dreams of you
        G/C/G
my body trembles
       G/C/G
i wake up
              D/Dsus2/D
and call your name
             C
but your not there
           G/C/G
and i'm so lonesome
             D/Dsus2/C
without your love

i'll go insane
        G/C/G
i'll go insane


***Noodle in the key of G***


           G/C/G
i close my eyes
                 G/C/G
and you're there with me
            G/C/G
your kiss i feel
            D/Dsus2/D
your face i see
              C
it's not your touch girl
                  G/C/G
that's driving me crazy
                D/Dsus2/C
it's just those lonesome

memories

those memories
          G/C/G
those memories.