i play it in open g. and it sounds really good when i play it over the song.
so that makes it pretty accurate.
!!!!!!!!! REMEMBER TO USE VIBRATO EVERYWHERE !!!!!!!!!!!!!
  this is the high part played by derek.
intro:
D |/3-\2-p0----/5--3-----0--------0--|-/3-\2-p0----/5--3------------------|
B |----------------------------------|------------------------------------|
G |--------------------------5-/6----|------------------------------------|
D |----------------------------------|------------------------------------|
G |----------------------------------|------------------------------------|
D |----------------------------------|------------------------------------|

D |/3-\2-p0----/5--3-----0--------0--|----------------------------|-------|
B |----------------------------------|----------------------------|-------|
G |--------------------------5-/6----|---3-\2-p0------------/7----|-------|
D |----------------------------------|------------3-\2-p0---/7----|-------|
G |----------------------------------|----------------------------|-------|
D |----------------------------------|----------------------------|-------|

D |/3-\2-p0----/5--3-----0--------0--|-/3-\2-p0----/5--3-------------|----|
B |----------------------------------|-------------------------------|----|
G |-------------------------5-/6-----|-------------------------------|----|
D |----------------------------------|-------------------------------|----|
G |----------------------------------|-------------------------------|----|
D |----------------------------------|-------------------------------|----|

D |/3-\2-p0----/5--3--3--4--5--6--7--|-------------------------|----------|
B |---------------------------------3|-------------------------|----------|
G |----------------------------------|--3-\2-p0------------/7--|----------|
D |----------------------------------|-----------3-\2-p0---/7--|----------|
G |----------------------------------|-------------------------|----------|
D |----------------------------------|-------------------------|----------|

the song goes like this:(repeat this part the necesary number of times. warren playes 
over this, and derek playes solo over the warren. warren playes something simmilar to this 
it's lower. the par where i play the first string 12 fret i alternate with this:
|---/15------12---| or |---/15---12-10-12-12| or just |--------------|)

D |----12----------|/3-\2-p0---/5--3---0------0--|/3-\2-p0---/5--3--------|
B |----------------|-----------------------------|------------------------|
G |-0----/3----/5--|---------------------5-/6----|------------------------|
D |-0----/3----/5--|-----------------------------|------------------------|
G |----------------|-----------------------------|------------------------|
D |----------------|-----------------------------|------------------------|

D |----12----------|/3-\2-p0---/5--3---0------0--|------------------------|
B |----------------|-----------------------------|------------------------|
G |-0----/3----/5--|---------------------5-/6----|--3-\2-p0------------/7-|
D |-0----/3----/5--|-----------------------------|-----------3-\2-p0---/7-|
G |----------------|-----------------------------|------------------------|
D |----------------|-----------------------------|------------------------|

D |----------------|/3-\2-p0---/5--3---0------0--|------------------------|
B |----------------|-----------------------------|------------------------|
G |/7----/10---/5--|---------------------5-/6----|--3-\2-p0------------/7-|
D |/7----/10---/5--|-----------------------------|-----------3-\2-p0---/7-|
G |----------------|-----------------------------|------------------------|
D |----------------|-----------------------------|------------------------|

warren's low part:

D |----------------------------------|------------------------------------|
B |----------------------------------|------------------------------------|
G |----------------------------------|------------------------------------|
D |/3-\2-p0----/5--3-----0--------0--|/3-\2-p0----/5--3-------------------|
G |--------------------------5-/6----|------------------------------------|
D |----------------------------------|------------------------------------|

D |----------------------------------|----------------------------|-------|
B |----------------------------------|----------------------------|-------|
G |----------------------------------|----------------------------|-------|
D |/3-\2-p0----/5--3-----0--------0--|----------------------------|-------|
G |--------------------------5-/6----|---3-\2-p0------------/7----|-------|
D |----------------------------------|------------3-\2-p0---/7----|-------|

D |----------------------------------|----------------------------|-------|
B |----------------------------------|----------------------------|-------|
G |----------------------------------|----------------------------|-------|
D |/3-\2-p0----/5--3-----0--------0--|/3-\2-p0----/5--3-----------|-------|
G |--------------------------5-/6----|----------------------------|-------|
D |----------------------------------|----------------------------|-------|

D |----------------------------------|-------------------------|----------|
B |----------------------------------|-------------------------|----------|
G |----------------------------------|-------------------------|----------|
D |/3-\2-p0----/5--3--3--4--5--6--7--|-------------------------|----------|
G |----------------------------------|--3-\2-p0------------/7--|----------|
D |----------------------------------|-----------3-\2-p0---/7--|----------|
 hope you get the ideea. and remember to have fun and experiment.