You will only be able to edit a photo's details before it is approved. Once it is approved, if you want to add or change something you can email us at email@example.com or you can delete and resubmit that photo.
To edit your photo details before ti is approved, see below.
Once you get to the Manage Photos page click on the Pending Photos tab, hover over the image you want to edit and click on the pencil (edit) icon on the top left.
This will take you to the edit section where you'll be able to edit title, description, categories, and tags.
Make sure you click on the Save button at the end to save your changes.