I am trying, at the moment, to tune my guitar so I can play Creeds 'Sacrifice' It says I have to tune my guitar to drop D. But I have seen 3 different versions of Drop D tuning and none of them sound correct. Does anyone know how Creed tune their Guitars EXACTLY. I need to know!!!!

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I've got a bad feeling about this!

Well this is how i do it, and it always sounds correct. Hit the 12th harmonic on E then hit the open string on D. Wait till the the sound waves stop colliding and are exact (you know the woo woo sound) and then play two string on the E and A they should sound good
E-mail me if it doesnt work

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Remember me.

Creed's "My Sacrifice" is not in drop D, its in open D5. That tuning goes like this. D A D A D D.

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And God said, 'Let there be rock!'
-And it was good

Well, altho it seems that your song didn't need this sort of drop D, i thought i'd tell you the easy way. This is the version that Muse tend to use for their songs.
To tune into drop D the easy way, tune your guitar as normal. i.e. fretting the 2nd string at the fifth fret and tuning that note to the open 1st string etc. (i take it you know that method?)
Once you reach tuning the 6th string, fret it at the seventh fret. then tune down until that fretted note is equal in pitch to the open 5th string. in diagramatic form, it should look like this

E
B
G
D
A
D

that version is not only a hell of a lot easier to tune down and back again, but also makes Barre chords (well, power chords), a doddle to play. hope that helps you with any future songs.
l8r guys