Hi Maureen -
Once you are in the event, on the left hand navigation bar, scroll down to Email -> Event Emails. Locate the email that you need to update and click on the Event Email Name (example: Registration Confirmation). Depending on what you have to change, you can either click Edit (to edit the Subject Line or To: or From: fields or Design Email (to edit content within the email).
If you can't see these options, you may not have Admin or Planner access to make these changes. You may need to contact Cvent Support if you don't have the proper role to make edits.
Hope this helps!
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Rebecca Yousif
Senior Administrator, Event Technology
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