With some googling and tinkering, I figured out how to write a xslt 
stylesheet for test reporting.  Here is the stylesheet:

<?xml version="1.0" encoding="ISO-8859-1"?>

<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">

<xsl:template match="/">
  <html>
  <body>
  <xsl:apply-templates/>
  </body>
  </html>
  </xsl:template>

 <xsl:template match="testsuite">
  <h2>Test Report:<xsl:value-of select="@name"/></h2>
  <table border="0">
    <tr>
      <td><b>Number of Tests:</b></td>
      <td><xsl:value-of select="@tests"/></td>
    </tr>
    <tr>
      <td><b>Number of Failures:</b></td>
      <td><xsl:value-of select="@failures"/></td>
    </tr>
    <tr>
      <td><b>Execution Time:</b></td>
      <td><xsl:value-of select="@time"/></td>
    </tr>
    <tr>
      <td><b>Number of Tests:</b></td>
      <td><xsl:value-of select="@tests"/></td>
    </tr>
  </table>
  <h3>Test Status</h3>
  <table border="1">
    <tr bgcolor="#9acd32">
      <th align="left">Name</th>
      <th align="left">Status</th>
      <th align="left">Execution Time</th>
    </tr>
    <xsl:apply-templates select="testcase"/>
   </table>
</xsl:template>

<xsl:template match="testcase">
  <tr>
    <td><xsl:value-of select="@name"/></td>
    <xsl:variable name="bgcolor">
      <xsl:choose>
        <xsl:when test="@status='Failed'">red</xsl:when>
        <xsl:otherwise></xsl:otherwise>
      </xsl:choose>
    </xsl:variable>
    <td bgcolor="{$bgcolor}"><xsl:value-of select="@status"/></td>
    <td><xsl:value-of select="@time"/></td>
  </tr>
    <xsl:apply-templates select="failure"/>
</xsl:template>

<xsl:template match="failure">
  <tr><td colspan="3"><xsl:value-of select="."/></td></tr>
</xsl:template>
</xsl:stylesheet>
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