help to delete decription for video, and change cursor to "hand"

Hi! I need some help!

I use “alternativewall” Display mode for my vio gallery:
http://www.seishindo.eu/campionato-di-karate-fik-regione-lombardia-16-febbraio-video/

How it’s possible delete decription for video? Why when i pass over images cursor non change to hands? Thank you!

Nick