Customization Layers

[JABakken@dstsystems.com]

I'm just getting started with customization layers, so I copied an example
directly out of a book (and of course it didn't work). I was wondering if
anybody could set me straight.

Here is the customization layer:

<?xml version='1.0'?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transfrom";
version="1.0">
<xsl:import href="htmlhelp/htmlhelp.xsl"/>
<xsl:param name="html.stylesheet" select="'mystyle.css'"/>
</xsl:stylesheet>

When I tried to use it, I got the following error message: "stylesheet
required attribute: version".

Any suggestions?

Thanks.

JB