This is how I play it. I think it sounds like Hamish's version.
You should get the rythm from the verse.
Intro and between verses - strum Am/E x3
Verse
      Am       C          Am         C
Well oot o the east there came a hard man
Am C Am                   C
Oh oh aa' the wey frae Brigton
Am C   Am      C       Am       C             E    Am
Ah ha glory hallelujuh, cod liver oil and the orange juice

etc, etc

Hope this helps. I'm trying to learn the 37 bus, but am finding it hard to fit Nicky Tams chords into the song. Any help gratefully received !!

Cheers

BigAl