How to copy whole source tree? (NEWBIE)

Hi!

I try to copy whole tree and replace some tags. I started from
copying everything blindly.

I used this:

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

And it doesn't work

Thank you for any help
Marcin

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