I need a guestbook that will actually be on my website, No links no nothing.

Like the freewebs ones, they put it into your website

No installations either.

Does anyone know one?

I would say you would need some kind of server side scripting for your own guestbook. I dont think freewebs provides that. =/ PM me if you wanna get a diff host cuz I know one that gives subdomains for free ^_^