Hi,
We have been using the gamekiller app on our vanilla network since it was released and I would just like to say what a wonderful piece of programming, I just wish I could even work out where to start when it comes to creating an app like yours. Anyway, I have moved off topic. It worked brilliantly for about a week. Really annoyed our year 11's to the point that they threatened the other technician here which was funny. Then, they found a way round the program.
If they open up flash, load there swf into it, publish a new swf and web page and then run the created html, they can not only play the game, but it doesn't appear in the copied games folder.
I am not sure if there is anything you can do about this one but I really do hope you can. The year 11's are leaving soon, but the rest of the school will no doubt know how to get the games to run.
the_travisty