The tune is not there, and if you don't know Granny's armchair, that's not much help either. The chords were posted in 2008, and I'd agree that they are correct.
As for notes (in same key!):
B B BD'...., C' C' E'....,
D' D'D' D'B GA B A A....,
B B D'B... C' C' E'...,
D' D'D' D'B GA BG A G.
(Sorry, I don't do proper ABC! The tune is the same for both verse and chorus. Could write it out in standard notation, no bother!)