This procedure changes the due dates for  all the deliverables within a project.
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                Expand the project, if necessary,  to display its items.
            
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                Right-click the Default Milestones item, and  select Manage from the menu.
                The Manage Milestones dialog appears. 
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                Right-click the milestone you want to modify, and select Set due date... from the menu. 
                An interactive calendar appears. 
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                Select  the required date, then click OK.
                The Manage Milestones dialog reappears showing the modified date. 
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                Click OK when you're finished.
            
The modified milestone date appears beneath its project in the Project Management view.