Rock song in Chi trova un amico, trova un tesoro

Hi. I tried hard, searched in many languages (italian, german, english, czech), searched the name of song in youtube comments. But I didn't find anything. All I want is just a name of rock song that you can hear in movie A friend is a treasure (Chi trova un amico, trova un tesoro). You can hear it twice in this movie, when pirates arrive on island, and at the end, in another battle with pirates. This song isn't even in original soundtrack album.
You can listen the song there:
www.youtube.com/watch?feature=player_embedded&v=z_O...
or there:
www.youtube.com/watch?feature=player_embedded&v=sXz...

I hope anybody will help. I found that somebody searched there this song many years ago, and decided to start new thread.