someone help me please

Blinddog the tabs on this song in the index are not quite right I have played this song for many years both Chuck Berry's version as well as Johnny Rivers and Lonnie mack's(instrumental version) Johnny Rivers version is to the best of my memory in the Key of E major there are only two chords in the song E and B the intro is played by placing your finger on the b string 5th fret and playing both the b and e strings together for the first beat on the 2nd beat you slide your finger down to the 3 fret (D) then play the B string open after that you play note on the 3 string 2nd fret (A) then open G followed by an E on the 4th string 2nd fret to complete the riff the progression is E to B its not easy to describe but after the riff there are 4 bars of E and the singing starts on the last beat of the 4th bar (Long) to B (distance information etc... but there's an extra bar of E "cause my uncle took the" B message and etc....just watch a video of Johnny Rivers and you will get the idea where the chords change