Let's strip away all the nonsense while we're at it. The idea that Bolton will be able to advance any reforms at the United Nations is ridiculous. He has nothing but contempt for the organization, they know it, and there isn't a representative there who will listen to him or accept his leadership. So unless President Bush is willing to back up Bolton with action like witholding funding, something requiring far more spine than he has shown to date, then nothing at all will come out of this.
The UN doesn't need to be "reformed," it needs to go away. Bolton's take-no-prisoners attitude will be refreshing. He'll vocally oppose the routine U.S. bashing that is the UN's daily soup. Will the U.S. pull out of the UN, or seriously cut its funding? Doubtful. But even if Bolton does nothing but call a spade a spade to the despots and fruitcakes in that "august body," it'll be worthwhile.