If your main page was PHP, it would be easy – use an include to insert the “news” page (or even a specially generated news page with only the last few posts) anywhere in the main page.
However, I see you have a flash animation, and I dunno whether flash and PHP get along or not… if the news stuff is to replace the flash, easy. (PHP include tutorial here). If not, I have no idea whatsoever. Hope this helps some anyways!
You have your flash movie read and parse your XML feed…that way you could include it anywhere on the main page you want…There are resources out there that explain integrating XML with flash. Here’s one, in case you’ve never done it:
http://www.studiowhiz.com/tutorials/24/
I’ve done it once, and it was pretty easy (just a smidge of ActionScript).
BTW, using XML parsing is a good way to integrate your blog contents into just about any type of web page. Just consume the RSS feed and away you go…