ok, this is my 1st tab, but trust me, im pretty sure this is bout perfect...

1st thing you need to do is drop all strings down 1 whole step, then your top string 
another.(if that makes sense) n you shud have some sort of c tuning. yeah!

.=p.m  /=slide up

intro.                                                   verse(s)
------------------------------------------------------|----------------------|
------------------------------------------------------|----------------------|
------------------------------------------------------|----------------------|
------------------------------------------------------|----------------------|
-----424--44--44------535--55--55------424--44--44--2-|-4444424----5555535---|
-4444424--44--44--5555535--55--55--4444424--44--44--2-|-4444424----5555535---|
 ....     ..  ..  ....     ..  ..  ....     ..  ..      ....       ....

                 chorus
----------------|-----------------------------------------------------------|
----------------|-----------------------------------------------------------|
----------------|-----------------------------------------------------------|
-------242----2-|-----424--------4--24--------535--------5--35--/7------424-|
---4444242----2-|-4444424--4444444--24----5555535--5555555--35--/7--4444424-|
   ....           ....     ......         ......   ......           .....

                    this bit comes after the 2nd chorus... and this riff
                                                           kicks ass!
--------------------|----------------------|---------------|----------------|
--------------------|----------------------|---------------|----------------|
--------------------|----------------------|---------------|----------------|
--------------------|----------------------|---------------|----------------|
--4-----24-----2----|--444-444-444-444-444-|44----44---444-|-99-77-44-55-45-|
--4-----24-----2----|--444-444-444-444-444-|44-44-44-44444-|-99-77-44-55-45-|
                       ... ... ... ... ...     ..    ..

and thats it, it realy isnt as hard as is sounds, rock n roll dude!

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99-77-44-55-42-|
99-77-44-55-42-|