Hi womandi,
If you would like to use images you are hosting elsewhere when creating your listings through Auctiva, you will first need to scroll down past the "Select an Image" boxes on the listing creation page and click the small "Switch to Externally Hosted Images" link. Once you do this, when you click any of the "Select an Image" boxes, you will see the option to add your images by entering the URL's of your externally hosted images.
If you would like the externally hosted image option on the lister page to be selected by default, please click the "Account Settings" link under the "My Account" tab within your account. Then, select "External" from the drop-down menu labeled "Default Image Hosting" and click the "Update Account Preferences" button below.
If you have any additional questions or concerns, please feel free to contact our customer support team using the web form on the following page:
http://www.auctiva.com/help/requesthelp.aspx-Mike