The following DTML Method will make a simple navigation bar. I always make the zope site ONE level below the root, hopefully this explains the code.
<!-- start YahooBar -->
<dtml-in PARENTS skip_unauthorized>
<dtml-unless sequence-end>
<dtml-with sequence-item>
<a href="<dtml-var "absolute_url()">" CLASS="navi">
<dtml-var title>
</a>
</dtml-with>
<IMG SRC="<dtml-var currhost>/images/leftarrw.gif" ALT="<">
</dtml-unless>
</dtml-in>
<!-- end YahooBar -->
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