Click the dots to expand/collapse the tiers. The red dots are expandable, while the black dots are the pages themselves.
this realy only works well in Internet Explorer. It is works in Mozilla/Netscape, but is
unpracticly slow, just like most DHTML. No Guarantees on other browsers.
big thanks to DHTML Central, where we found
this free, open source graphical site map.
if this doesn't work for you... try this text site map.