http://www.bbc.co.uk/webwise/course/jargon/a.s html
http://members.aol.com/shobansen3/
Loads here for free from the Internet.
I have used it many times...
Also here......http://chat.dailymail.co.uk/dailymail/forum.jsp?forum=84
That is the Daily Mail web forum where you can ask all manor of questions and someone usually pops up and answers a query.
Your own ISP usually has a facility to ask questions too.
Good luck to your parents.
I am an oldie and wouldn't be without my PC now.
DD