Wiki Pluging - Best Way To List Categories

Hello folks,

I just bought the Wiki plug-in and it looks like it'll almost perfect for my needs. The biggest thing is that my wiki needs to have easily-viewable category lists, like seen HERE.

However, when clicking on categories with the plug-in, it shows anything under that category as WP would normally show older posts. As I need to use a lot of categories and sub-categories this just isn't going to work.

Is there a way to create a list of categories and sub-categories similar to how MediaWiki shows them in my above example, or will I have to create those lists manually?

Thanks in advance for any help.