Well, obviously I created this topic, but it shows up at the top level. I am unable to create a new reply under the other categories. For example, if I want to post under "About the Mac", it says that topic is closed. No "create" button of any kind is visible when viewing that topic.
On most boards of this kind, typically the top level items are categories (which these appear to be) but there is no way that I see to enter a question or comment in that category.
Am I missing something simple here?