You could always get FSHostClient (free) and join one of the FSHost servers, no need for FS2004.
Ryan
..if it was that simple, I am always surprised why more FSX Pilots don't try and use it...and constantly complain about Game Spy instead...?....

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Very few FSX Pilots can be seen on Sim V, (and therefore FS Host's) Server...

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I forget now, (it's been a while since I used it), but it may be something to to with the FSX Multiplayer Log-In procedure...insisting upon using Game Spy only?
There was/is no problem with instantly connecting to any Server of your choice with FS 2002 and FS 2004...
F...G-BPLF... 8-)...!