Oooh... d'oh... chords eh... ummm... well... I do it in DADGAD, capoed 3rd, to put it in the key of F

The 2nd half of the verse and the chrous have the same chord progression...

Ummm... lemme see if this helps....

(D)Welcome in my thirsty (G)fellow
hang your (D)hat inside the (G)door
If we're (D)only packed to (Em)bursting
then there's (G)surely room for (A)more
We'll (D)deny the cold of (G)winter
We'll have (D)only song and (G)cheer
As we (D)gather here (Em)together
in the (G)first cold (A)of the (D)year

Here's a (D)dram to warm the(G) piper
Here's a (D)dram to warm the (G)hall
Here's a (D)dram to raise the (Em)rafters
And here's (G)long life (A)to you (D)all

That's kinda close.. but probably closer to the way I do it lately thn Danny's original version...

Hope it helps at all though...

;-)