I've been hearing about this accusation (it is in french, translation below) since it first surfaced on July 30th. It has been made by Lebanese-french bloggers living in Lebanon:
"We have it from a credible source that Hizbullah, alarmed by Siniora's plan, has concocted an incident that would help thwart the negotiations.See also A Whiff of the Med for a full translation of the entire post.
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.
Ynet has covered this claim, commenting:
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.
To me, this claim of stuffing that building with disabled children is a little (to say the least) far out and the only evidence in support of it that I've been able to find is this statement made by one of the Red Cross rescuers and covered on CNN "Red Cross worker Sami Yazbak, who was helping to pull bodies from the building, said many of the children who were sleeping inside were handicapped."
One interesting thing is that the accusation made by the Lebanese bloggers surfaced about 10 hours prior to the CNN report with the comment above. However, given that it is highly likely that this rescuer made similar statements in the arabic press the folks in Lebanon would have heard this rescuer's claims much sooner.
Anyone have any further information about this claim? Until then, personally, I'm not buying.
More credible concerns about the events in Qana being staged can be found here and here. The dust, or rather lack thereof, on the victims (theoretically dug from beneath the rubble of a collapsed building that had cement-type walls) and on their rescuers (who we are told had to dig through the rubble with their bare hands to get to the victims) and the images showing the same guy carrying the same corpses over and over again through-out the day are the issues that send alarm bells ringing for me.