I finally stumbled, fumbled, and bumbled my way into getting a 16-second test video clip into my iMovie Project Library. I even got as far as far as preparing the video resolution for Emailing, although I don't know how I got there. Anyway, I think I am now on the brink of being able to send my test video, but I don't want to waste the entire afternoon learning how to do that. What's my next step?
I finally found the section in my iMovies book that tells how to send iMovies by E-mail, and I have now sent my first test video. The quality not acceptable, but if it arrives as a viewable video, I'll then look into making improvements.