This - recently updated - document gives a step by step explanation of what is modified in your Radio configuration when you instal activeRenderer, when you turn on the weblog outline style, when you turn it off, and finally when you uninstal the tool.

As becomes the author of liveTopics, Matt publishes a multi-page index of the topics related to his weblog posts. Each topic is a summit node in the page's outline, with as many children as there are titles of weblog entries related to that topic.

Clicking on the title takes you straight to the weblog's entry. Each entry may be related to several topics. Alternate topics are listed as childrens of the title.