You mention that the 12th fret should be 1 octave higher. This would be the same note, but a different pitch, correct? If it's the E string, it should also be dead on E at the 12th fret?
This is a closeup pic of the grey version of my guitar (grabbed from ebay). How would I raise the bridge on this setup?
http://i13.ebayimg.com/05/i/001/04/05/e510_3.JPG