"Like Mick Jagger in exact reverse." That's the way Keith Richards has described Mick Taylor, the straight-faced guitarist who was sucked into the carnal vortex of the Rolling Stones at the tender age of 20. He did more than just replace guitarist and founding member Brian Jones, he added a whole new dimension to the Stones' dirty white-boy sound. His bluesy, melodic playing and ability to read a song were crucial to the success of the band's three masterpiece albums: "Let it Bleed," "Sticky Fingers," and "Exile on Main Street." He turns 67 tomorrow.