I've seen that site builder's work before, and it doesn't get any better.
It's a uniquely awful effort, but still one that could catch out the unwary traveller.
Non-EU citizens should go here to find out about obtaining a visa to work as an au pair in the UK http://www.ukvisas.gov.uk/en/doineedvisa/ Whenever payment is requested by Western Union you're dealing with a scammer