website hacking

can someone tell me how i can enter as admin is websites like this one
Login Banca dati
i have tried in very symple ways but i have miserably failed
can you tell me what this website is volnurable 2 ? and if a wanted to hack it what i would want to try...

Sure bro first to crack a host ip first. Then go for the index log.rest is easy.

Looks like asp... Try adding this after the url... ?login="admin"