This song is in standard tuning, and you need an allen wrench in order to to this song.  To do this effect, rub the allen wrench along the 5th, and 6th string, above the known frets.

Key:
/ - slide up  (with allen wrench)
 - slide down  (With allen wrench)
h - Hammer-on
^ - Bend 1/2 step


Intro, Verse
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-2/32/32/3--------2/32/32/3-------|
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Chorus
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-2/32/32/32/32/32/32--1h3----2/32/32/32/32/32/32--1h3--|

Riff during the second verse
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---------------------------0----------------------------------0------|
---------------------------0----------------------------------0------|
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-----5----(5^)---(5)------------------5-----(5^)---(5)---------------|


Repeat the chorus, then verse, then chorus again, and thats pretty mcuh it.