Sub-Forums are not listed on Parent Forum
 

I have searched the help forums here and have not found an answer to this. The problem I have encountered is that my sub-forums are not showing on the parent forum page. I have attempted to edit the page/module and can not find where to fix this. You can see an example of this issue at http://www.kingcruisers.com/cruise-talk. Note that on this page it is showing all of the forums on the site instead of the sub-forums. Also you can see another example of a similar issue at http://www.kingcruisers.com/cruise-lines-a-l-roll-calls.
I hope my question/issue makes sense. Navigating the site is a royal pain since the sub-forums are not listing. Any help would be appreciated.

Thank you,
Marc