Sorry, one of those links above is still bad - it takes you to the wrong place. Never mind; here is the complete sound track listing courtesy of cinema.com:

"Po Lazarus"
Performed by James Carter & The Prisoners
Recorded by Alan Lomax
Courtesy of Rounder Records by Arrangement
with Ocean Park Music Group

"Big Rock Candy Mountain"
Written by Harry McClintock
Performed by Harry McClintock
Courtesy of BMG Entertainment

"You Are My Sunshine"
Written by Jimmie Davis and Charles Mitchell
Performed by Alan O'Bryant

"Down to the River to Pray"
Traditional
Performed by Alison Krauss

"I Am a Man of Constant Sorrow"
Traditional
Arranged by Carter Stanley
Performed by Dan Tyminski
Solo fiddle version
Performed and arranged by John Hartford
Solo guitar version
Performed by Norman Blake

"Hard Time Killing Floor Blues"
Written by Skip James
Performed by Chris Thomas King
Instrumental Version Performed by Colin Linden

"Keep On The Sunny Side"
Written by AP Carter
Performed by The Whites
End Title Version Performed by the Cox Famlily

"Admiration"
Written by William Tyers
Performed by Pat Rebillo

"I'll Fly Away"
Written by Albert E. Brumley
Performed by the Kossoy Sisters with Erik Darling
Courtesy of Tradition, A Rykodisc Label

"Didn't Leave Nobody But The Baby"
Written by Mrs. Sidney Carter
Courtesy of Alan Lomax
Adapted by T Bone Burnett and Gillian Welch
Performed by Emmylou Harris, Alison Krauss and Gillian Welch

"In The Highways"
Written by Maybelle Carter
Performed by Sarah, Hannah and Leah Peasall

"Tom Devil"
Performed by Ed Lewis & The Prisoners
Recorded by Alan Lomax
Courtesy of Rounder Records
By Arrangement with Ocean Park Music Group

"I Am Weary (Let Me Rest)"
Written by Pete Roberts
Performed by the Cox Family

"O Death"
Traditional
Performed by Ralph Stanley

"Indian War Woop"
Written by Hoyt Ming
Performed by John Hartford

"In The Jailhouse Now"
Written by Jimmie Rodgers
Performed by Tim Blake Nelson and Pat Enright

"Lonesome Valley"
Written by A.P. Carter
Performed by Fairfield Four

"Angel Band"
Written by W. York
Performed by Sarah, Hannah and Leah Peasall with James Hill
End title version
Performed by The Stanley Brothers
Courtesy of Universal Music Group

Soundtrack Available on - MECURY RECORDS

Music Producer - T Bone Burnett
Executive Music Producer - Denise Stiff
Associate Music Producer - Gillian Welch
Musicologist - Sandy Wilbur
Music Legal Services - Jill Berliner, Debra MacCulloch, Michelle Dixon
Music Clearances - Deborah Mannis-Gardner
Music Co-ordinator - Lee Olsen
Music Production Co-ordinator - Valerie Pack
Music Recorded by - Mike Piersante
Research - Alan Larman
Yodeling - Pat Enright

Music Recording at Sound Emporium and Ocean Way, Nashville