Fourteen little assignments later and I have successfully finished the online "Aupair in the UK" course I had to do with the Smart Aupairs programme. None of it was very difficult. I suppose it would be more useful for people from more different cultures or who haven't done a lot of childcare work. I did find some of the research informative though like this brilliant and fun website which is a great place to search for activities and things to do with children all over the UK.
Mostly, however, the completion of this course brings a breath of relief being able to tick another major step off my list. Now I shall continue my wait for a family match and hopefully land a job before I go.