roach - can't help with your main enquiry but there is a thing called the Fax Preference Service where you can register that you do not want junk faxes. It becomes an offence if somebody then sends you one. I think it is an offence to send junk faxes to a private individual anyway, but the FPS works. Can't remember contact details but it is part of the Mail Preference Service (no junk snailmail) and Telephone Preference Service (no junk 'phone calls from double glazers etc). All three work well.