I'm fairly certain you'd be able to find the score for it. It'd most likely be written for piano of violin, but it would be alot more accurate than any midi file. Failing that I would suggest trying to work it out yourself, or get a friend to help you. I know it defeats the object of looking for tabs and stuff, but it'll help you later when playing/learning other songs and it'll also make you appreciate the song so much more.
Just my thoughts. Hope it was of some use.