Tuning: 7 string standard dropped open (AEADGBe) 7 string not needed.
There really wasn't much out there for this song, and I'm sure it's not perfect, but 
goes. Careful with your timing.

Intro- starts off with just keyboard then:
G1
----------------------|
----------------------|
-7~-7~--888/7---------|(x16)
-7~~~~--888/7---------|(riff is played in an 8 count)
-5~~~~--666/5---------|
----------------------|
----------------------|
After G1 played the riff 4 times, G2 kicks in with:
----------------------|
----------------------|
----------------------|(same timing)
----------------------|(play for with G1 for last 12 of the x16)
-5~~~~--666/5---------|
-5~~~~--666/5---------|
-5~~~~--666/5---------|

Verse: both guitars play their intro part x4, then only guitar 2 x4.

Chorus(each riff fits into a 1 count, and are played 8 times each)
Part 1   Part 2
------| --------|
------| --------|
------| --------|
------| --------|
-5555-| -5-5-5--|
-5555-| -5-5-5--|
-5555-| -5-5-5--|
 ....    . . .
Post Chorus: G1 plays its Intro riff x4.

Verse 2: G1 plays its Intro riff x4, then after that, GH2 plays its Intro riff x4.

-Play Chorus

Post Chorus 2: G1 plays its intro riff x8

Interlude 1(let ring go for 16 count, both guitars together)
G1    G2
----| ----|
----| ----|
-7~-| ----|
-7~-| ----|
-5~-| -5~-|
----| -5~-|
----| -5~-|

Interlude 2(each riff fits into 4 count, riff played x4 with both guitars together)
G1       G2
------| ------|
------| ------|
-7-8~-| ------|
-7-8~-| ------|
-5-6~-| -5-6~-|
------| -5-6~-|
------| -5-6~-|

Interlude 3(carried on to outro, couple slight variations I believe)
----------------------|
----------------------|
----------------------|
----------------------|
-333-33333------------|
-333-33333------------|
-333-33333------------|
 ... .....
Outro
------------| ----------|
------------| ----------|
-7~---7-----| -7~~~~----|
-7~-----7---| -7~~~~----|
-5~-------5-| -5~~~~----|
------------| ----------|
------------| ----------|
  4 count      /\ let ring out and give feedback