[Bacardil]

I am interested in my XBMC on my Ubuntu machine will have the same configuration as the one here http://xbmc.org/wp-content/uploads/xbmc_about.jpg

Is there anyone who can tell me what web interface / skin I need? Possibly if there is a guide somewhere?

[Ned Scott]

That's the default skin, Confluence (wiki). See Adding videos to the library (wiki).

[Hitcher]

That's the standard XBMC skin Confluence.