I too was addicted to this game for many years--I was particularly fond of the museum layout.
If you like WWII Fighters and want to upgrade to something more modern, let me recommend Ubisoft's IL-2 Sturmovik Series--not only does the complete series have a few hundred flyable aircraft, they manage to cover almost every theater of the war, and it's one of the few series that has WWII Fighter's gorgeous internal cockpits. Check it out!
*loves his FW-190A8, and his Ki-100*
"We're on sob day two of Operation Weeping-Bald-Eagle-Liberty-Never-Forget-Freedom-Watch sniff no word yet sob on our missing patriot Glenn Beck sob as alleged-President Hussein Obama shows his explicit support sniff for his fellow communists by ruling out the nuclear option."