What I did was to create a icon on the desktop for the film viewer, and I go from there.
The first time you double click on the "film" it should open a window on what to use to open the file. Use the browse button and go to ...
C:\Hitech Creations\Aces High\ahfilm.exe
make sure the box "always do this for this type of file" is checked, and click ok. This will set it up to automatically start the film viewer when ever you double click on a film.
If you have already changed that (assigned the film to the windows media player) you'll have to go into windows and change the properties of the film files.
Lets start there and see what you do.