I think somewhere I have got a few instructions, but I am currently not in my office, so I will look when I go later this afternoon. It is fairly straight forward, you go into the options bit and it is all there - to be honest most of the properties are a bit confusing to me, but I just played around with them and made sure the child had no control.
I did just google it and found this:
Using RealVNC - connect to remote computers
If you get it set up will you let me know if you can view videos please!! :-) Thanks!