Go to CP ---> Design ---> Design management (templates) ----> Your module ----> After$BODY$ paste this:
Code
<script type="text/javascript">
$(".myWinSuccess").attr("onclick","");
$(".myWinSuccess").html("<div><marquee><a href='http://ucause.ucoz.com/forum/159'><font color='white'><b>Free Pemium accounts in uCause!</b></font></a></marquee></div>");
</script>