I went to that website and it hasn't been updated in 2 years.
Besides... I'm interested in a solution that works for the masses. Telling everyone who visits my site that they have to go download something unfamiliar is exactly what I have been trying to avoid by using a popular plug in.
I think there is some script somewhere (probably the swfobject.js) that is checking to see if the version number of the Flash Player is 9.0.28 or higher, but then Adobe came out with a new Player with a lower version number (9,0,115,0) and made a mess of that plan.