Noreen: Yes that is the song! I agree with you. Cathal's voice is fantastic! I once saw them live here in Sweden. I wanted to hear him sing this song but I was afraid to ask when they asked for requests! I really regret that now, as I probably will never see them live again :(
Here is what I have translated. I could only get half sentences out of the first verse but here is the rest (not sure how this will look when I paste it!):

1
(I can only understand parts of this verse!!)
2
Her parents were to me unkind and all together cruel.
… I could not my mind relief unto my dearest jewel.
The reason was because I was poor,
One sight of me, they couldn't endure.
Neither could I approach the door, where dwells my lovely Ann
3
Now I'll go down to yonder town and hang my head in mourning.
Still hoping for to gain one look, for her my heart's a yearning.
If I don't gain this lady fair,
my heart will torn into despair.
No other one shall ease my care, if I'm deprived of Ann