This is one of my favorite Mike Oldfield tracks i've noticed 
tabs out there that are wrong so here is the way I play it. 
Sounds right to me let me know if you think otherwise... Enjoy!

e|----------------------|
B|---------3-2-0---0----|
G|0-2-2--0-------0---2--|
D|---------------------0|   x3
A|----------------------|
E|----------------------|

e|----------------------|
B|---------3-2-0-3-2-3--|
G|0-2-2--0--------------|
D|----------------------|   x1
A|----------------------|
E|----------------------|
  
The is also used for the chorus