If you believe it was proper for us to invade Iraq and kill tens of thousands of innocent civilians, and

It was proper to disrespect the dead, then,

You have no moral standing to condemn Hussein for killing tens of thousands of Iraqis and disrespecting the dead.

Four wrongs don't make a right. Morals and ethics do not shift depending upon wether you are friend or foe, or depending upon the actions of your foe.