Well gents, there is no one more enthusiastic than i am to see a good WW1 sim. My first sim was FCG and my dream would be that sim with modern graphics. Everything else was OK.
However, most of these posts here seem to be unaware that there is a good WW1 sim about to emerge on 18 December 2005. It is called Over Flanders Field and it is a free add on to CFS 3.
Do a search and go to the website for info, screenies etc. You will be pleasantly surprised.

Also, if you want to fly an Albatross 111 -One of the best planes I;ve had in a sim, with a wonderful FM - do a search for Stuart Green who has made such a plane for FS2004. OK, so you are not shooting anyone :)but just try this plane. The VC is the best VC of any plane i have ever flown. You can see the individual tappetts of the engine going up and down.Wonderful!!