I managed to do this by adding an XML/XSL Module to the page I want the feed to display. I've set up a blog.xslt file that shows only the last 3 posts like this:

<?xml version="1.0" encoding="utf-8"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
    xmlns:xhtml="http://www.w3.org/1999/xhtml"
    version="1.0">
  <xsl:output method="xml" indent="yes"/>
  <xsl:param name="start" select="0"/>
  <xsl:param name="counter" select="3"/>
  <xsl:template match="rss/channel">
      <P>News in blog: <a href="{link}" target="_main"><xsl:value-of select="title"/></a>! Recent posts:</P>
      <br />
      <xsl:for-each select="item[position() > $start][position() &lt; $counter + 1]">
        <p><a href="{link}" target="_main"><xsl:value-of select="title"/></a> on <xsl:value-of select="pubDate"/></p>
      </xsl:for-each>
  </xsl:template>

After uploading the file on the website, you just have to correctly set up the XML/XSL module to use it, add the feed link and you've finished. I hope this will work with you,

Dario Rossa.