this is a simple package to generate a google sitemap. This one is available @ yoursite/config.xml. Generated file are in 0.9 scheme like :

<url>
<loc>http://yoursite/home</loc>
<priority>1.0</priority>
<changefreq>daily</changefreq>
<lastmod>2008-03-08T08:48:28+00:00</lastmod>
</url>

you should edit sitemap_template_navigation to adjust time to your datetime zone, hope this help. The changefreq field have been set to daily, this one is optional. You should also read this

Comments

koen: " Perhaps a link to google might be in place here. I have downloaded and put this package into my WebGUI site. What is the page_layout called google_sitemap_layout used for?  Koen de Jonge - ProcoliX http://www.procolix.com Hosting - WebGUI - Virtualization "

eskan: " thanks for reply, this layout isn't used so i remove it. I also addlink like you suggested. "

koen: " Perhaps it might also be a good idea to tune the how often does your page change a bit. Daily might look good, but I wouldn't  be surprized if google would give a penalty for not actually changing that page daily. Koen de Jonge - ProcoliX http://www.procolix.com Hosting - WebGUI - Virtualization "

lrobinson: " Does the LastModified macro call do what you wanted here? As far as I can see, it gives the date the sitemap navigation asset was created, not the modification date of the asset described inside the tags.   "

sge: "Having the same problem with the LastModified macro"