You're probably better served looking for a copy of the X-Wing Collector Series, which will run on modern Windows systems (albeit w/ a patch found on
LucasFiles.com in order to run w/ 3D acceleration) and includes both X-Wing and TIE Fighter with all of the expansions (the TIE Fighter expansion, BTW, was titled "Defender of the Empire" and
was available on floppy disk, despite what others have posted here). You may have to start all over b/c of pilot file compatibility problems, but at least you'll have a game w/ everything.
