You're going to need to write a server side script to parse an RSS file(s) to accomplish most of this. You should be able to find complete scripts that do this or libraries out there to help you out.
As for displaying the actual article on your page, as far as I know it's pretty much impossible. Normally, feeds only include stuff like titles, descriptions, and links to the main file. They generally don't include the entire item. Any attempt to extract the article from this page will be very difficult, if not impossible.