This is not the whole song but its a good way to learn first, and get a hang of how the melody is.
This is an eazy tab to play if you've heard the song.



   O When the saints, O when the saints, O when the saints go marchig in...
 e|--------------------------------------------------------|
 b|----0--1--3--------0--1--3---------0--1--3--0-----0-----|
 g|-0--------------0---------------0--------------0-----2--|
 d|--------------------------------------------------------|
 a|--------------------------------------------------------|
 E|--------------------------------------------------------|

   O lord id love to be in your number. O when the saints go marching in!
 e|---------------------------------------------------------|
 b|-0--0-----------0--3--3--3--1----1--0--1--3--0-----------|
 g|-------2--0--0----------------------------------2--2--0--|
 d|---------------------------------------------------------|
 a|---------------------------------------------------------|
 E|---------------------------------------------------------|

Well thats it. For questions or commets (good ones) e-mail me @ uyi2121@yahoo.com
Have fun with this tab I did.