Translation of testify in German

If I wanted to integrate the above demo on our page, would we need to work with Vocabulix or do you have some other options? Could you send me some samples of other teachers, who integrated this demo?
I have another small request: Is it possible that your webmaster sends us the loading html (the one that is displayed during the download of the large html)and the instruction of how to install it?
Honk Kong was intense. We liked it on the one hand, but after coming from South East Asia, it seemed a little boring to us. What I mean is that it is more Western and less exciting for us.