It's a shame, there were already a lot of positive comments in the guest book, but those last few replies, I wonder, if they don't like elves, why do they even visit your site? Weird, but once i read the messages, I almost instantly tought about those teens who think they're cool because they 'destroyed' a beautifull site which (probably) took a lot of work. If you would be able to delete the most recent page, the problem would be fixed. Maybe you could try to copy all the other comments into a new guestbook?
Why don't they get a life? the only thing they're doing right now is insulting people, meaning that they don't have any friends or just want to act cool.