What about addon scenery for FSX?

Hi all,I have some questions about addon scenery for FSX.1) Are there any available already? and where to find them?2) Can the addon scenarios for FS2004 be used also in FSX?A final consideration from a beginner like me: FSX is sure two steps ahead FS2004 considering the "standard" world representation included, but I've seen scenarios for FS2004 that in my opinion are two steps ahead the "standard world" of FSX.Is there anyone else that agree with me??Bye to everybody