The only problem with this is that 1) apparently Freud sold the villa in 2002 and 2) there are conflicting reports from UK police and Freud´s family about whether he was in UK or away from home on the date Maddy disappeared, and 3) who was in the villa - there has been ZERO hard evidence provided that the Podestas were there AFAIK.
There are other issues too with this whole story, which are resulting, seemingly, from the Chinese Whispers going on between 4chan, 8chan, Reddit, and other citizen investigators, and the lack of awareness of the huge body of evidence by UK citizen investigators, Portuguese police and so on.

I have followed the story from the day of her disappearance until now and there are 100s of theories, investigations (unofficial and official). It is clear that the truth has not been revealed, that there are inconsistencies with the parents´and the Tapas Seven (those dining out with them that night) stories, the strange refusal by the mother to answer many of the questions the Portuguese police asked, the completely bizarre response from high-ups in UK government, including Prime Minister Gordon Brown, when the child vanished, the reaction of the cadaver dogs, and much, much more.

One thing which came out of all of this was a growing realisation in the UK that IF there was a paedophilia link to her disappearance, it went a VERY long way up in British society. It is probable it is international. There are websites galore in UK which cover this sorry tale. One, for example, shows some of the identfit photos and statements given by witnesses. http://aangirfan.blogspot.com.es/2013/10/madeleine-mccann-conflicting-evidence.html
The possibility that this is an international societal issue is high, and anyone investigating it needs to be aware of the many, many thousands of hours research already done into the links between Dutroux, Savile, McCann, Epstein, UK Royal Family etc etc etc etc etc.