your tuning is gonna be C#, Ab, Db, Gb, low to high...but no need for the g string, 
so dont worry bout tuning it....here you go..this is definitely right..

VERSE(S)

Db------------------------------------------------------------------
Ab--0--0-0-0---0-0------------------------------------5--5--5-5-5---
C#-------------------6--6-6-6---6-6---5--5-5-5---5-5----------------

Db------------------------------------------------------------------
Ab--0--0-0-0---0-0-------------------------------------5--4--5------
C#-------------------2--2-2-2---2-2---5--5-5-5---5-5---------0------

CHORUS

Db-------------------------------------------------------------7----
Ab--------------------7--7-7-7---7-7---5-5---5-5-5-5---5h7p5-5---5p0
C#--4--4-4-4---4-4--------------------------------------------------

...into a wall of fire...

Db-----------------------------------------------
Ab--0--0-0-0---0-0/7-7--7-7-7--7-7---------------
C#-----------------------------------5--4---0----

ok, not too hard i guess....enjoy
-the bass dude guy