Es este código, no sé qué has hecho mal...:
Código HTML:
<script language="JavaScript" src="http://convert.rss-to-javascript.com/?simple_chan=1&desc=1&num=9&src=http%3A%2F%2Fwww.noticiasarquitectura.info%2FnoticiasRSS.aspx">
</script><noscript>Your browser does not support JavaScript. <a title='RSS-to-JavaScript.com: Free RSS to JavaScript Converter' href=http://www.rss-to-javascript.com/?p=151,381&simple_chan=1&desc=1&num=9&src=http%3A%2F%2Fwww.noticiasarquitectura.info%2FnoticiasRSS.aspx&as_html=1>Click to read the latest news</a>.</noscript>
<a href=http://www.rss-to-javascript.com target=_blank title='RSS-to-JavaScript.com: Free RSS to JavaScript Converter'><img src=http://www.rss-to-javascript.com/images/rss-to-jss-small.gif alt='RSS to JavaScript' border=0></a>