It works, I changed in prefrences - setup - to use built-in-browser and enabled plugins etc
I made my own SWF usin flash own built-in webcam rutines , just as the website I posted.
Got me a free hosting site and put up a page and used that as a media texture inworld
Only thing though for some reason the buttons is not inteactive when flash ask for permisson
to use webcam, so one has to approve that before hand in a standard webbrowser.