Use <xsl:output .../> i.e.
<?xml version="1.0" encoding="utf-8"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
<xsl:output method="xml"
media-type="text/html"
doctype-public="-//W3C//DTD XHTML 1.0 Strict//EN"
doctype-system="DTD/xhtml1-strict.dtd"
cdata-section-elements="script style"
indent="yes"
encoding="ISO-8859-1"/>
<xsl:template match="/">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>USER::Add</title>
</head>
<body>
<h3>USER ADD</h3>
<div align="right"><a href="/user/list.html">user list</a></div>
<hr/>
<form action="http://xobjex.com/cgi-bin/process.pl" method="post">
<input type="hidden" name="xsl" value="user/instance.xsl"/>
<input type="hidden" name="instance" value="true"/>
<table>
<tr>
<td>username:</td>
<td><input type="text" name="username"/></td>
</tr>
<tr>
<td>password:</td>
<td><input type="password" name="password"/></td>
</tr>
<tr>
<td>re-type password:</td>
<td><input type="password" name="password-confirm"/></td>
</tr>
<tr>
<td>firstname:</td>
<td><input type="text" name="name.first"/></td>
</tr>
<tr>
<td>lastname:</td>
<td><input type="text" name="name.last"/></td>
</tr>
<tr>
<td><br/></td>
<td><input type="submit" value="OK"/></td>
</tr>
</table>
</form>
<hr/>
</body>
</html>
</xsl:template>
</xsl:stylesheet>
XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list