@mombasajoe - before that try just running the game using the file called "executeable" in the Starfighter folder. It should be with c3d.lib. You may need to Show All Files to see it. Double click on it to run. This may solve your problem.
Also check you haven't installed to a folder called Starfighter - the typical error for this situation if you have is "File Not Found" and then it drops back to Workbench.