Hi, Cambria! I think the issue is that this is pretty old school so it doesn’t have the fancy bells and whistles of some formats.
To find a thread, you can look on the sidebar for “Recent topics” which are threads that were recently started. Click on the name of the thread and it will take you to that thread.
If you want to see what people are talking about, look for “Recent replies.” Those are the threads that have been most recently active.
If you want a category of thread types, look on the same sidebar for “Forums” – this will take you to the general forum, where you’ll find all the topics and subforums.
I hope this helps! If not, please feel free to ask questions until you feel comfortable 🙂