Here is my very very very very current favorite (until someone posts a better one) live version of Stand Back.
http://www.mediafire.com/?gzttmmwmfy1
It's from sometime during the Tango In The Night tour, and right before the second chorus, Stevie says "WEEELLL TAKE IT ALLLL.."
Why is this version currently my favorite? Because the quality is excellent, and Stevie was really into this performance... her voice sounds wonderful. She definitely isn't on kolonopin robot mode. This is the first version of the song I ever heard, even before the studio version, and I fell in love with it.. So, the studio version does nothing for me by comparison. Enjoy!