A big GDAY Mate from down here in Australia. There is a better free flight sim than FMS, its made in Australia and called PRE-Flight. PRE-Flight was about $75US or something but now its FREEWARE! It has more features lige moving surfaces, retracts and flaps. You can create landscapes and models but there arent as many models or landscapes as FMS available on the web but thats because no one really knows about it! Im sure if it had as much publicity as FMS thare would be a lot more. Go to
http://www.users.bigpond.net.au/atv/preflight001.htm there are also instructions for interfaces and interface kits to buy.
If you have trouble getting an interface try this site in Japan
http://www.sekiriki.jp/smartpropo/index.html Its called SmartPropo and uses a mono audio cable for tx connection. It is still in its development stages but is looking good. (Ive got XP Pro so not many interfaces work on my system).
So give them a try and post your opinions on them.
Have Fun
DF MAN