Hello Karol,

the XSLT specification (I am guessing thats what u are reading) is not
a very good tutorial, especially if you are a beginner.

have you tried XSLT FAQ ?

http://www.dpawson.co.uk/xsl/index.html

since u did not include an example XSLT, I cannot point out where you
are going wrong....

but here is a 'classic' identity stylesheet;

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

  <xsl:template match="node()|@*">
    <xsl:copy>
      <xsl:apply-templates select="@*|node()"/>
    </xsl:copy>
  </xsl:template>

</xsl:stylesheet>

start from here and amend.

hth , Jim Fuller