I'm the developer behind Jooplicate. If you have any questions please let me know. Thanks!
I work for a university that still is very hesitant on using cloud services, because they don't want student data going outside our machines.
I'm currently focused on getting the public service out there, but if you're keen to get Jooplicate running locally please drop me an email andrew@equin.co.uk . It would be useful to know what kind of requirements you have.
Thanks.
Edit: Oh, wait, it's just HTML you're sending--I see. You're not capturing a screenshot.