Lyrics to practically every song Chuck has ever written can now be found at the Chuck Berry, Rock 'n' Roll Poet site; it takes a while to download, but most of the lyrics have been transcribed correctly.
A number of people have written to me recently to see if I have the TAB for "Johnny B. Goode." I don't, and I don't know of a good version of the song in tab form right now. However, there is a version of the guitar parts for Johnny B. Goode here, though I have no idea how accurate it is. Until I find somthing better, I hope this will suffice.