How do you use live trace in adobe illustrator cs3?

In Adobe Illustrator CS3, you can use Live Trace by first selecting the raster image you want to convert. Then, go to the "Object" menu, choose "Live Trace," and select "Make" to automatically trace the image. You can adjust the tracing options by selecting "Live Trace" again and choosing "Tracing Options" to customize the settings for better results. Once satisfied, you can expand the traced object to edit it further.