Here are the steps to follow:
Log onto your account and click the "My Account" option on the main navigation.
You will arrive on your contact information. To make changes simply click the field and make your updates. Remember to click "Save" before exiting the contact section.
To add a new head shot or logo, click the tab and then the upload button to find your image. You can leave the old one in your account or click the red X to remove it. If you are not going to delete the old image, remember that the image appearing in the first position on the left hand side of your folder is the one that will automatically populate your marketing materials. If you wish to change the order simply click the images and drag them to move them into position.