if I understood your question in the right way, might be this video gallery which I made to animate a discussion one of more procedures of solutions. Look here: http://www.goldschmiede-blumberg.de/AdobTest/flv/flv3.html. The first video starts of itself, the others you have to start like a tape recorder.
This page could already be a linked page. Previously, you could create a site like "image area", where users will see only a screenshot from the contemplables videos. With one click, you can send them into the respective video gallery.
Is there a way maybe of addressing individual sections of the Flash movie from HTML buttons?
Think of it this way:
Your site has a Nav menu that leads to individual html pages.
Each page contains a Flash Video Player with a playlist.
The Playlist contains links to all the FLV clips relating to this page's topic.
Notice I said clips. Don't try to use one long playing video on the web.
This recent discussion may be of interest to you...
WWD FLV Player is pretty nice. It's compact, easy to set-up.
Read the installation.html that comes with it.
Good luck with your project,