i've found the tag editor: if you are playing a song and right click on the visualization you can choose "info center view" and then "always show".... .it the new window displayed, you can choose the lyrics button and then you see the lyrics. in my case, there is only shown one line of the lyrics at a time.

hmm.... i've downloaded the brown eyed girl song that somebody posted here on the bbs and for me it works with empathic & wmp9 ?