MSN has announced that based on feedback from a crop of beta testers, they have made some major updates to the interface that will reduce campaign setup to a four-step process. They’ve also updated the demographic information display to make it easier to quickly see what targeting will be most effective for a campaign. Following the lead of Google and Yahoo!, MSN has also added an adCenter blog that will be used to share tips, tricks and tool updates from the adCenter staff and engineers.