Was Qana a Setup?

A Lebanese website (in French) claims that Hezbollah intentionally placed a rocket launcher on the roof of the targeted buildin and placed "invalid children" within it to cause a world outcry (it has) and prevent their proposed disarmament. YNET has a translation:

We have it from a credible source that Hizbullah, alarmed by Siniora's plan, has concocted an incident that would help thwart the negotiations. Knowing full well that Israel will not hesitate to bombard civilian targets, Hizbullah gunmen placed a rocket launcher on the roof in Qana and brought disabled children inside, in a bid to provoke a response by the Israeli Air Force. In this way, they were planning to take advantage of the death of innocents and curtail the negotiation initiative," the site stated.

The site's editors also claimed that not only did Hizbullah stage the event, but that it also chose Qana for a specific reason: "They used Qana because the village had already turned into a symbol for massacring innocent civilians, and so they set up 'Qana 2'." Notably, the incident has indeed been dubbed "The second Qana massacre" by the Arab media.

As more details emerge, the more this story starts to unravel.

Update: The J-Post has a piece about bloggers efforts to get to the truth although they misname the Confederate Yankee site.

Update (8-3): The Israeli's accept the blame and say they received bad intel.