Not sure about her IQ but she had a private school education, much like Ami Childs. Why they want to adopt the dumb bimbo career is beyond me.
Private school education does not necessarily mean a high IQ as a result. Often, people send their kids to a private school as their lack of brains brings down the success rates of conventional schools, so go private to hide their embarrassment.
The thing Flanagan has going for her is a good publicity agent - just like Katie Price has. Their agent is being paid to ensure maximum publicity, whether good or bad - so longs as their name and pic appears in the newspaper.
Sadly, The Sun doesn't really fit the description of a NEWSpaper!