While we are waiting for the official feeds to start working, I have found a good alternative for those that use RSS religiously as I do.
KBAlertz have updated to include Flight Simulator 2004 now!
Flight Simulator 2004
http://www.kbalertz.com/rss/FlightSimulator2004-CenturyofFlight.xml
For some reason, it is only showing the last 10… but it is a start.