This will not create the sitemap for you, but here's a template for a simple RSS sitemap. You can just plug in your data and add items as needed
<?xml version="1.0" ?>
<rss version="2.0">
<channel>
<title>YOUR WEBSITE TITLE</title>
<description>BRIEF DESCRIPTION OF YOUR WEBSITE</description>
<link>HTTP://YOUR.DOMAIN</link>
<item>
<title>THIS ITEM IS USUALLY YOUR HOME PAGE</title>
<description>BRIEF DESCRIPTION OF YOUR HOME PAGE</description>
<link>HTTP://YOUR.DOMAIN</link>
<guid isPermaLink="true">HTTP://YOUR.DOMAIN</guid>
</item>
<item>
<title>PAGE TITLE</title>
<description>BRIEF DESCRIPTION OF PAGE CONTENTS</description>
<link>HTTP://YOUR.DOMAIN/PATH_TO_YOUR_PAGE.HTML</link>
<guid isPermaLink="true">HTTP://YOUR.DOMAIN/PATH_TO_YOUR_PAGE.HTML</guid>
</item>
</channel>
</rss>
hth
--dlp