UN arms inspectors say they have found nothing yet, but still have a lot of things to inspect and people to talk to. The US said they knew for a fact that Iraq had forbidden weapons. It is expected that the US will eventually provide UN weapons inspectors with the locations of the forbidden weapons. At the moment, the UN does not have all its inspectors and helicopters in Iraq yet.
Arab and European nations have been urging Saddam to resign and go into exile, offering him several nations willing to provide sanctuary (and, presumably, immunity from prosecution for war crimes). But Saddam has always seen himself as an Arab hero who would be disgraced by going into exile. He apparently wants to go out in a blaze of glory, that will be remembered for centuries hence.