supersized jquery help please?

I want to add a fading full size background slideshow to my webpage using the supersized jquery. I haven't had much experience with js and can't figure out how to readjust the supersized slideshow coding (which also features thumbnails at the bottom and navigation arrows).

I basically want to achieve the same thing as at the website http://www.februe.de/

I would be very happy if someone could help!

Thanks.