The Standard version of DHTML Menu has three very useful options on the "Tools" menu which will automatically generate the following items from a menu, even a menu that includes multiple levels:
Site Map - Sitemaps are a great SEO and usability tool. They make it easy for search engine crawlers to visit your entire site. They also give visitors a secondary navigation option and a view of your site's structure. You can view a multiple level sitemap at http://swanacal.com/sitemap.html.
Generate Google XML Sitemap - A Google XML Sitemap can improve your site's visibility in Google search results.
I'm not familiar with DHTML Menu Lite so I looked it up. According to the website it costs $35.00 US and includes the three tools I described above.
BillUnofficial DHTML Menu Resource Site