I am not sure if I missed this before or if it turned up in a recent update, but it pretty much solves the problem. Well, it turns out, there is a predelivered script already in my current copy of Outlook Mac 2011 that enables this. I had heard then there were ways to write an AppleScript program to do this, but I did not want to subject my readers to doing that.
In my article on Outlook Mac 2011, I complained that there was no easy way to convert e-mails to tasks in Outlook 2011, which greatly diminished the power of the task system there.