I don't have the sheet music, I have a LEAD SHEET (that's melody line only, lyrics, and chords), no accompaniment, no filler chords below the melody line.
It is in the key of Bb (two flats).
It starts with a Bb chord and ends with a Bb chord. I would say it's in the key of Bb.

I also have it in G for guitar (capo 3). In the guitar version the chord is G5.
Intro:
Bb/D Eb(add9) F/A Bb5 (there it is) Eb(add9) F/A Bb5
Verse1:
Bb/D Eb(add9) F Bb5
Bb/D Eb(add9) F Bb5
Bb/D Eb(add9) F Gm7 Eb(add9) F Bb5
Starkeeper
[This message has been edited by Starkeeper (edited 12-06-2006).]
[This message has been edited by Starkeeper (edited 12-06-2006).]