Maybe it was just renaming it that solved it. It was 3 years ago. I would attempt to locate the file first in the textures folder, and find the one that is just gray, or smokey. That should be your guy. Just rename it and check it out. If it's not the right one and your cockpit is still covered in gray sheet, then just select another plane, try a different file, and reselect your F-14 to fix the problem.
Words, such as liberal and liberty, all trace their history to the Latin liber, which means "free".