I'm wondering if there has been a slight misunderstanding

as although Opus would allow you to easily create media presentations if you owned Opus, it would require more effort to build a program, using Opus, that allow students to do what you're asking and it's not currently possilbe to publish to a standalone EXE or SWF from an Opus publication only from Opus it's self.
I have seen more and more educational programs that do what you are asking and I think that this would be a great additional to Opus to developed 'closed' programs that could 'saved' in a viewable and distrobutable format such as SWF.
However, that isn't so say, that Opus as it stands cannot be used to develop something simular, except that you'd need to save all the student inputs (audio, video, pictures and text) as linked files and positions on screen etc (unless they were already included as additional resources) and these files would have to bve supplied manually with the source publication.
Regards,
Mack