Need Ability to Override Default text field When the textfield is left blank, a default value populates. But when a value is placed into the text field, that value should show on the front end. It currently does not.

I have  admin rights to edit,view any pages. I have enabled everything for adminstartor roles under User Management->roles. Even then am unable to update a new value to that field. It is populating the default value.
You can change the field default text in the field settings page of the content type, for example:

admin/structure/types/manage/[your-content-type]/fields/[your-field]

You need to change [your-content-type] and [your-field] by the real values on your drupal website.