Well, well... I'd never have guessed that! Simple when you know how. You've no idea how long I tried to figure it out! I was looking in the wrong place all along.
I know I'm playing with fire dabbling with this stuff without the background knowledge, but needs must...
Thanks you so much for your help :)
My next challenge is to create an interface whereby someone can upload a file and a link is added to the database. Is this something that can be achieved using "digital file pro"?