Grouping with XSL

Hi,

I have an XML document that looks something like this, and as you can
see I get duplicate DIVISIONS, but then different BUNITS and PAREAS
under it.

XML:
<ROWSET>
 <ROW>
  <DIVISIONID>1000</DIVISIONID>
  <DIVDESC>CORPORATE GROUP</DIVDESC>
  <BUNIT>
   <BUNIT_ROW>
    <BUNITID>1076</BUNITID>
    <BUNITDESC>Corporate Division</BUNITDESC>
    <PAREA>
     <PAREA_ROW>
      <PAREAID>7610</PAREAID>
      <PAREADESC>Corporate</PAREADESC>
     </PAREA_ROW>
    </PAREA>
   </BUNIT_ROW>
  </BUNIT>
 </ROW>
 <ROW>
  <DIVISIONID>2000</DIVISIONID>
  <DIVDESC>Corp Com Services</DIVDESC>
  <BUNIT>
   <BUNIT_ROW>
    <BUNITID>2075</BUNITID>
    <BUNITDESC>Pension Fund</BUNITDESC>
    <PAREA>
     <PAREA_ROW>
      <PAREAID>7501</PAREAID>
      <PAREADESC>Pens Fund Exec</PAREADESC>
     </PAREA_ROW>
    </PAREA>
   </BUNIT_ROW>
  </BUNIT>
 </ROW>
 <ROW>
  <DIVISIONID>2000</DIVISIONID>
  <DIVDESC>Corp Com Services</DIVDESC>
  <BUNIT>
   <BUNIT_ROW>
    <BUNITID>2095</BUNITID>
    <BUNITDESC>Corp Com Services</BUNITDESC>
    <PAREA>
     <PAREA_ROW>
      <PAREAID>9501</PAREAID>
      <PAREADESC>Com Executives</PAREADESC>
     </PAREA_ROW>
    </PAREA>
   </BUNIT_ROW>
  </BUNIT>
 </ROW>
 <ROW>
  <DIVISIONID>2000</DIVISIONID>
  <DIVDESC>Corp Com Services</DIVDESC>
  <BUNIT>
   <BUNIT_ROW>
    <BUNITID>2222</BUNITID>
    <BUNITDESC>Testing</BUNITDESC>
    <PAREA>
     <PAREA_ROW>
      <PAREAID>2224</PAREAID>
      <PAREADESC>TestingPA</PAREADESC>
     </PAREA_ROW>
    </PAREA>
   </BUNIT_ROW>
  </BUNIT>
 </ROW>
</ROWSET>


What I would like is to get the following result:
CORPORATE GROUP
-----Corporate Division
-------------Corporate
Corp Com Services
-----Pension Fund
-------------Pens Fund Exec
-----Corp Com Services
-------------Com Executives
-----Testing
-------------TestingPA

But at the moment I get:
CORPORATE GROUP
-----Corporate Division
-------------Corporate
Corp Com Services
-----Pension Fund
-------------Pens Fund Exec

With this XSL:

<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:fo="
http://www.w3.org/1999/XSL/Format">
 <xsl:key name="row-by-divisionid" match="ROW" use="DIVISIONID"/>
 <xsl:key name="unit-by-bu"
match="ROW/BUNIT/BUNIT_ROW[ancestor::ROW/DIVISIONID]"
use="DIVISIONID"/>
 <xsl:template match="ROWSET">
  <xsl:for-each select="ROW[count(. | key('row-by-divisionid',
DIVISIONID)[1]) = 1]">
   <xsl:sort select="DIVISIONID"/>
   <xsl:value-of select="DIVDESC"/><br/>
   <xsl:variable name="DIVID" select="DIVISIONID"/>
   -----<xsl:value-of
select="BUNIT/BUNIT_ROW/BUNITDESC[ancestor::ROW[DIVISIONID=$DIVID]]"
/><br/>
   -------------<xsl:value-of
select="BUNIT/BUNIT_ROW/PAREA/PAREA_ROW/PAREADESC" /><br/>
  </xsl:for-each>
 </xsl:template>
</xsl:stylesheet>

This line (BUNIT/BUNIT_ROW/BUNITDESC[ancestor::ROW[DIVISIONID=$DIVID]])
should change, but so far I could not get the correct result.
The other thing is that I am going to need another key for the
BUNIT_ROW level, as I can get duplicate results of that as well... I
tried a couple of options (you'll see the last one I tried:
"unit-by-bu"), but I'm a bit new to this and it didn't work :( I got a
couple of examples for the Muenchian method, but not one for multiple
levels of groupings.

Can anyone maybe point me in the right direction?

Thanks,
Thea Burger