Here's what I have so far:
1. Create new instance of Active Forums on the desired page. This cannot be the same page as your existing "source" forums. This new instance will act as a Topic Viewer.
2. Enter the control panel of the new module.
3. Go to Templates, and click Add Template
Name: TopicLoader
Subject: TopicLoader
Type: Forum View
4. Copy the contents of the attached text file, and enter it in the editor.
5. Replace ENTER_FORUM_URL with the address for the "source" forums. Notice that it is only the part of the URL between the http:// and the tabid. Replace the ## with the actual tabid of your "source" forums. The way the script works is it directly gets the content from that address and loads it, almost like an iframe.
6. Save the template.
7. Go to Control Panel > Settings and change the Template to TopicLoader
8. Exit the control panel.
At this point the forums module should appear blank. Add the topic id of any topic that exists in the "source" forums to load it on this page.
An example of the url would look like:
http://site.com/forumloader/default...topicid=23
If you already have values in the query string on the page, you can just add &topicid=23 on the end.
You can load any topic on the same page using this method. Alternatively if you want to just have multiple static pages with specific topics, the contents of the template do not have to be loaded as an AF template. You will need to apply the AF module.css file to the page, though.