Acheiving ..2nd level grouping but with different node

Hi everybody ...
   Sorry to repost ... I thought this may be good time to post for someone to look ..
   This seemed little different having different parent nodes for 2nd level grouping using keys ..

   Here is my XSL with first level grouping extracting distinct regions   and i am having problems grouping users within Region .
  Any help appreciated .
  Following is  XSL (presently pulling distinct regions ) .. an Examle XML and  expected result .
Note : I applied Keys to do 2nd level for users  but i was able to pull out only 1 row in each region where as 
          there are many userid's as shown below.

 _______________My  XSL _____________________

<xsl:key name="distinct-region" match="*" use="@reg"/>


<xsl:template match="/">

   <xsl:for-each select="rep/uwr/los[@reg][generate-id()=generate-id(key('distinct-region', @reg))]">

	<xsl:value-of select="@reg"/>
    </xsl:for-each>
 </xsl:template>


_________________XML______________________________

<rep>
  <uwr>
	<los userid="1014" reg="Region 4">
		<review type="N"><![CDATA[11]]></review>
		<review type="Y"><![CDATA[16]]></review>
	</los>
	<los userid="1017" reg="Region 4">
		<review type="N"><![CDATA[7]]></review>
		<review type="Y"><![CDATA[17]]></review>
	</los>
	<los userid="1025" reg="Region 2">
		<review type="N"><![CDATA[13]]></review>
		<review type="Y"><![CDATA[12]]></review>
	</los>
  </uwr>
  <arr>
	<los userid="1014" reg="Region 4">
		<review type="N"><![CDATA[15]]></review>
		<review type="Y"><![CDATA[19]]></review>
	</los>
	<los userid="1017" reg="Region 4">
		<review type="N"><![CDATA[20]]></review>
		<review type="Y"><![CDATA[22]]></review>
	</los>
	<los userid="1025" reg="Region 2">
		<review type="N"><![CDATA[23]]></review>
		<review type="Y"><![CDATA[25]]></review>
	</los>
  </arr>
</rep>

____________Expected Result__________________________

Region 4
    Userid  UWR(N)  UWR(Y)   ARR(N)     ARR(Y)
    1014          11       16               15          19
    1017           7        17              20           22
    
Region 2
   Userid    UWR(N)  UWR(Y)   ARR(N)   ARR(Y)
    1025       13             12             23          25


Thanks  
- Kumar
    


 XSL-List info and archive:  http://www.mulberrytech.com/xsl/xsl-list