Hi Donna,
Yes - in order to make sure the scrolling gallery is placed at the bottom of your listings that are already active, you will want to skip the token generation step you are presented with when you first log-in. You will then want to click the "Edit Scrolling Gallery" link under the "Store" tab within your account, choose "Place Below Description" from the "Edit Text and Placement" section, and then save your changes.
Once you have done so, you can go ahead and generate your token by clicking the "eBay Settings" link under the "My Account" tab within your account, and then clicking the "Get New Token" link on the ensuing page. Once you have completed the token generation process, your listings will have the scrolling gallery added to the bottom of them.
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