'Sunshine Of Your Love' by Clapton Eric - Guitar Tutorial

            THE BASICS OF THIS SONG, IS VERY EASY, IT ONE SIMPLE, EASY RIFF, AND THE 
TUNING IS NORMAL, AND IT GOES AS FOLLOWS:

E-------------------------------------
A-------------------------------------
D------------------7--6--5------------
G--7---7---5---7--------------7------7
B-------------------------------6(wiggle that fret)
E-------------------------------------
       THIS IS THE INTRODUCTION!!!

THESE ARE THE CHORDS TO BE PLAYED BETWEEN THE INTRO:
E--5-5-4-5                              D-7-6-5-----------
A--5-5-4-5                              G-------7-----7---
D--7-7-6-7  AFTER THAT IT REPEATS THIS: B---------6(wiggle)
G--7-7-6-7                              E-----------------
B--7-7-6-7
E--5-5-4-5

ANYONE WANNA HELP ME OUT WITH THE BACKUP CHORDS????