[Zope] ZPT , Navigation Box ( like the plone one )

[Rakotomandimby Mihamina]

Hi all ,
I am using ZOpe for one month and i dont now the tips yet .
I would like i kind of "dtml-tree" into the navogation box of my Plone/Zope 
site .
At least i would like the navogation box to liste the current subfolders .
How should i do it ? Thank you in advance .
I already folowed http://www.zopelabs.com/cookbook/1044426491
But it doesn work for what i want ....