Sorry for the late reply, but I saw this and figured I would post it here for you in case you haven't yet found a solution.

What you want to do sounds like using JavaScript to communicate with ActionScript. If you're using AS3, there is a nice article which explains a little bit about this so that you can access certain parts of the Flash via the URL and anchor tags.

The article is: http://www.emanueleferonato.com/2010...lash-with-as3/

I'm sure you can do the same so that clicking on a link changes the SWF, you just might need to do a bit of digging around in the code file. Hopefully this a good start for you though if you still need assistance.