First of all this is my first tab ever and I hope I get if right. Sorry if there are 
mistakes...
Standart tuning / Capo 5. fret

Part A:
   E        G        D/F#     A
e|-----0--------3--------0--------0---------|
B|-------0--------3--------3--------2-------| repeat this riff through the
G|---------1--------0--------2--2-----2---2-|   whole "Mama who bore me"-part
D|---2--------0--------0----------------2---|
A|-------------------0--------0-------------|
E|-0--------3--------2--------0-------------|


Part B:
1.
   C        D/F#     A
e|-----0--------0--------0---------0---------|
B|-------3--------3--------2---------2-------|
G|---------1--------2--------2---2-----2---2-|
D|---2--------0--------2-----------------2---|
A|----------0--------0---------0-------------|
E|-0--------2--------0---------0-------------|
2.
   C        D/F#     Esus      E
e|-----0--------0--------0---------0---------|
B|-------3--------3--------0---------0-------| repeat this B riff through
G|---------1--------2--------2---1-----1---1-| the whole "some pray that one
D|---2--------0--------2-----------------2---|                     day"-part
A|----------0--------------------------------| And to the last
E|-0--------2--------0---------0-------------|

And at the end ofd the song, in the last verse you play the 2. B-part to " no peace in 
or bethlehem" and you end on E.