In order to add deadlines, click into your component (either Executive Summary or Formal Presentation) from the Details page. It should bring up a screen where you can edit all of the component details. Towards the bottom, you will see the option to set two deadlines: one for student submitting and the other for judges entering scores. When done, make sure to click "Save and Continue" through the next couple screens until you hit "Save and Finish."
Note: If you are requiring a document upload for the Formal Presentation, Elevator Pitch, or Tradeshow, you will have to switch on the "Components Attachments Required" option above the judging deadline. Then you can set the upload deadline for whatever you'd like.