So tablature is a form of written music for the guitar and stringed instruments.
For the Guitar it is six lines that represent each string
Numbers are written on the lines and they represent the fret that is to be played. SO EASY A CAVE MAN CAN DO IT!
Tablature is so available on the web and you can get tabs to just about any song. Now some of these tabs are created by amateurs so watch out, it may not be correct.
Watch this video on how to read tablature.