re: Was Pakistan aware of Bin Laden's whereabouts in Abbottabad?

Probably. The S-wing of ISI is tasked with trying to make inroads in Afghanistan, often working with Islamists. That particular wing probably knew. Key people in the military probably knew. I'm skeptical that the civilian government knew, as the military has a real distrust of the civilian government and vice-versa, but the military is the real power in he country.