Rather than start a panic about ISPs or websites being hacked, if we look at this logically we can try and work out what happened to Sue.
Sue, do you still have the URL of the site you visited please? (The Gozo one you were trying to link to.) If so, can you send it to me by email (glass AT yobunny DOT co DOT uk - change the obvious bits to @ and .) and I'll have a look and see if I can figure out what happened.