exslt date-time

I'm trying to implement exslt date-time() function for the first time. I'm 
on xalan-j within cocoon.
My stylesheet is

<xsl:stylesheet version="1.0"
               xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
               xmlns:date="http://exslt.org/dates-and-times";
               extension-element-prefixes="date">
<xsl:import href="exslt-date/date.date-time.xsl" />
<xsl:template match="/">
        <content>
                eat my dogfoo 24567
                <xsl:value-of select="date:date-time()"/>
                poo pooh
        </content>
</xsl:template>
</xsl:stylesheet>

within the exslt-date directory I have the files date.js. 
date.date-time.xml, date.msxml.xsl, and date.date-time.xsl (I have a feeling 
that only the last one is necessary)
My output looks like this:

<?xml version="1.0" encoding="UTF-8" ?>
<content>eat my dogfoo 24567</content>

Not only does the date-time not get output, but whatever comes after it gets 
cut out.
I'd appreciate any help

I-Lin Kuo, Ann Arbor, MI
Macromedia Certified ColdFusion 5.0 Advanced Developer
Sun Certified Java 2 Programmer
Ann Arbor Java Users Group (www.aajug.org) SUN Top 25 JUG

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