I can't view the Flash movie

I agree with greg. This sounds like linking problem.

If the previous designer has a hard link (say www.somesite.com/mymovies/somemovie.swf) and you cannot reach that destination from your workspace, you will not be able to see that movie. Also, if a relative path has been used (say ../mymovies/somemovie.swf), then make sure the movies are put in the right directory (i.e. /mymovies) before viewing.

Also note, there might be a need to publish and upload the course first, before being able to view the movies.