You can use the dtml-tree tag to easily make a site map. Embed the following code in a DTML method on the top level folder. The new buttons are shown if the stuff has changed in the last day.
<dtml-tree branches_expr="objectValues(['Folder', 'DTML Document'])" nowrap=1 sort=id>
<dtml-if title>
<dtml-if expr="meta_type == 'Folder'">
<IMG SRC="<dtml-var SCRIPT_NAME>/<dtml-var icon>">
<dtml-var title_or_id>
<dtml-else>
<IMG SRC="<dtml-var SCRIPT_NAME>/<dtml-var icon>">
<A HREF="<dtml-var absolute_url>"><dtml-var title_or_id></a>
</dtml-if>
<dtml-if "(ZopeTime() - bobobase_modification_time()) < 1">
<IMG SRC="/images/new.gif" alt="New" BORDER="0">
</dtml-if>
</dtml-if>
</dtml-tree>
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