this site is reserved for software developers and software development related problems. Your question seems to look at the problem from an end-user perspective so you should be posting it on an end-user discussion board such as http://discussions.europe.nokia.com
However, there seems to be little you can do. CNN's web platform would either not recognize the browser (if you go to http://edition.cnn.com/video) or recommend a Flash Player update (actually not available for Symbian based phones) if you open the live stream URL.
My advice, open a support request with CNN (see http://edition.cnn.com/feedback/forms/form9d.html) and evaluate with their technical team whether access to the stream is possible with your device. That might help CNN open their eye on a new market segment too.