I'm not to sure how the intro goes I think its something like this -

       E-------------------|
       B-------------------|
       G-------------------|
       D-------------------|
       A-3-2-0- x3 ---0----| x1
       E-----------3-2-----|


        The Main riff is-

        E----------------------------|
        B----------------------------|
        G---------5-5-7-5-7----------|
        D-7-7-5-5-5-5-7-5-7----------|
        A-7-7-5-5-3-3-5-3-5----------|
        E-5-5-3-3--------------------|

      Thats about it! This was my 1st tab YAY!