This shoutbox works fine, I use the beta version. But:
1/ I don't have smily icons under the inputbox. I only see the word 'Smilies?'
2/ Not registered users can put comments in the shoutbox. If I change the module to registered users only than it works but the not registered users can't see the shoutbox.
3/ When registered, the name of the registered person is not visible, only the word "name:" is seen.