If you want to use the script on your webpage you need to put this piece of javascript code on your webpage.
<script language="JavaScript" src="http://www.sa-digital.com/users.php?username=USERNAME&site=SITENAME">
</script>
USERNAME should be replaced with the currently logged in user. Max 48 chars.
SITENAME should be replaced with a unqiue name for your site. Max 64 chars.