Converting XML to HTML using a XSLT stylesheete??

     I have some problem with libxslt. I try to transform the xml file into another form with the following two files(one is an xml file, 
and the other is the xslt file.) I hope to get “SignatureValue” from the transform. But I don't know what's wrong. Would anyone be kind 
enough to tell me how to solve it. Any suggestion is appreciated. Thanks a lot....
  
 tpchen
 
======================== XSL FILE : Test.XSL=================================
http://210.242.21.129/nbca-download/test.xsl
 
======================== XML FILE : Test.XML=================================
http://210.242.21.129/nbca-download/test.xml
 
======================== XML&XSL Result  : Test_output.XML===================
http://210.242.21.129/nbca-download/test_output.xml
 



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