Error in displaying Table Headers.

Hi,
 
I am a beginner to FOP. I am trying to convert an XML to PDF. The data
is to be displayed in a table. But when I try to put headers into the
table i am getting the following error:
 
    javax.xml.transform.TransformerException:
org.apache.fop.apps.FOPException: A table cell must be child of
fo:table-row, not fo:table-header

I am referring  to "Chapter 18 of the XML Bible, Second Edition : XSL
Formatting Objects" from
http://www.ibiblio.org/xml/books/bible2/chapters/ch18.html#d1e5381.
 
The xsl file i am using is as follows:
 
=======================================================
    <?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="1.1"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:fo="http://www.w3.org/1999/XSL/Format"
exclude-result-prefixes="fo">
  <xsl:output method="xml" version="1.0" omit-xml-declaration="no"
indent="yes"/>
    <xsl:template match="Report">
    <fo:root xmlns:fo="http://www.w3.org/1999/XSL/Format">
      <fo:layout-master-set>
        <fo:simple-page-master master-name="simpleA4"
page-height="29.7cm" page-width="21cm" margin-top="2cm"
margin-bottom="2cm" margin-left="2cm" margin-right="2cm">
          <fo:region-body/>
        </fo:simple-page-master>
      </fo:layout-master-set>
      <fo:page-sequence master-reference="simpleA4">
        <fo:flow flow-name="xsl-region-body">
           <fo:block font-size="10pt">
            <fo:table table-layout="fixed">
              <fo:table-column column-width="4cm"/>
              <fo:table-column column-width="4cm"/>
              <fo:table-column column-width="5cm"/>
              <fo:table-body>
                <xsl:apply-templates/>
              </fo:table-body>
            </fo:table>
          </fo:block>
        </fo:flow>
      </fo:page-sequence>
    </fo:root>
  </xsl:template>

    <xsl:template match="R">
  <fo:table>
   <fo:table-header>
  
     <fo:table-cell>
 <fo:block font-size="12pt" font-weight="bold">Header1</fo:block>
     </fo:table-cell>
     <fo:table-cell>
 <fo:block font-size="12pt" font-weight="bold">Header2</fo:block>
     </fo:table-cell>
     <fo:table-cell>
 <fo:block font-size="12pt" font-weight="bold">Header3</fo:block>
     </fo:table-cell>
    
   </fo:table-header>
   <fo:table-body>
    <fo:table-row>
      
      <fo:table-cell>
        <fo:block>
          <xsl:value-of select="Data1"/>
        </fo:block>
      </fo:table-cell>
      <fo:table-cell>
        <fo:block>
          <xsl:value-of select="Data2"/>
        </fo:block>
      </fo:table-cell>
      <fo:table-cell>
        <fo:block>
          <xsl:value-of select="Data3"/>
        </fo:block>
      </fo:table-cell>
    </fo:table-row>
    </fo:table-body>
 </fo:table>
  </xsl:template>
</xsl:stylesheet>
========================================================================
============
 
I am using fop-0.20.5. Can you please suggest what is the best possible
way? or is the doc i'm referring to is outdated?

Regards,

Kaustuv Sharma