FS 2004 Multiplayer? Where ?

I have yet to find anyone on this simulators multiplayer link

Here, easy.

http://zone.msn.com/en/root/cdrom.htm

Here, more for pro flyers.

http://www.vatsim.net/

Latey i havent been able to connect to multiplayer via zone.msn.com. It isnt my firewall because i even tried disabling it b4 i tried to connect. The problem is that i can see the diffrent rooms to various flight simulator games ( fs2002,204,combat...) but when i click on the room nothing happens. When i try to open the link in a different window it shows the typical site not found error. Anyone have any suggestion?

Leave that area, dump your cookies, cache and history. Reset your browser security lower, and accept all cookies. Make sure that you accept the zone and then go back and try again.
I would tell you to try using Mozilla Firefox but since MS owns the zone I don't know if they will let you in with it. That would be a last resort.

http://www.mozilla.org/

it doesn't supost mozilla

If you installed SP2 that raised the default settings of IE very high.
You're going to have to have to lower them or first try to put the Zone into the accepted site category.