All I want is the best Trench run possible.

I have the all three versions of Xwing.

-the oldest (1993) is just too old on the graphics
-the 1998 version has only Tour 3 up to Mission 12
-the CD 1994 version works but has the bad graphics.
HELP!

The Trench Run is Tour 3, Mission 14. Or do B-Wing Historical Mission 6 to fly the trench run in a B-Wing.

Sounds like you're almost there on your 1998 version playthrough. Tour 3, Mission 13 is an initial attack on the Death Star's surface to take out several installations in preparation for Mission 14, which is the trench run itself.

Tour 3 mission 14, sleect the topace pilot and go to historical missions, it should be there in the windows version too.

No Go :-( All the TopAces and such only give me tour 3 1 to 12. It doesn't even show up as 1 to 14. Just 1 to 12. Like '3 of 12' or '11 of 12'.

The Bwing run looks great

I want my Xwing though....

OK
This should do, I converted the old topace file from my DOS cd installation to X-wing 98 and uploaded it here:
https://ufile.io/aznwj

Thank you!

That did the trick. Plus trying to figure out where the Launcher.exe. was going to....but that's a longer story. But ... this Christmas I will fly my Xwing over the Death Star on the big screen .