Rich,

I'm afraid that I'm all out of ideas here. From your previous post, it's definately asking for the jar from the server:

Got http request: GET /trio-applet-0.1.4.jar HTTP/1.1

And so why it's not running it is a mystery. As a last resort I'd suggest clearing your web browser caches, but I'm not sure what else to suggest.

Cheers
Paul