displaying forum navigation tree for non-forum pages

[lwillacy]

How do I display the navigation tree for non-forum pages?

(By navigation tree I mean the organization chart style tree in the forum header that shows where a sub-forum is located in relation to parent forums.)

One page I created displays it--- http://travelwisdom.com/forums/contest.php.

However, even using the same code and modifying only the text, other pages--- e.g. http://travelwisdom.com/forums/chat.php--- don't display it.

What am I overlooking?

Thanks.