Hi Peter, Thanks for that. I don't have the faintest idea what happened there. I haven't been near that part of my cPanel for years. On checking, everything was fine, but I deleted and re-entered the information and now it's okay. With over 100 visitors a day, I think some people will be a bit peeved off. I've been checking the site daily, but for some reason I've been using the second link you gave me.
Anyway, it's fixed now and I'll put a redirect link in that index page which I'd forgotten I've been using to protect the parent directory.
Thanks,
John