If you have an ortho photo you want to include in your drawing you can insert it as a picture, crop it to include the portion you want, then resize it to fit your survey. This is not intended to be a rigorous geo-referenced fit, but will allow you to display the drawing objects on top of the photo for reference.
Pictures
Inserting a Picture into a Drawing
Referencing the Survey to a Picture
Resizing a Picture
Editing a Picture
Picture Settings Dialog
Personal, Premium, Professional