can't help you with the contact details but when DH and I have had visiting littlies, we have set up a guest ID on the computer and put the filters on that ID only. So long as you keep your logon details a secret from the kids then its safe. I was working for the NHS of the time and did work at home that included doing searches about "physical matters" I couldn't work with a filter on as it would have screened out the stuff I needed along with the nasties.