Follow these instructions to change an image in an existing News Item.
From the Administration Site Map, under the Content group, click News Items.
From the News Items page, click the pencil/edit icon.
From the News items edit page,
- click "Remove" on the row for the Image to remove the existing image
- click "Browse",
- click "Next",
- click "Browse" to find the file to upload,
- click "Finish".
Now the file appears in the News Item Edit page, so click "Save" to save your changes.