This add-on allows you to add a vertical or horizontal flash gallery to your website. You can choose which setting you want.
To add the Vertical Flash Gallery add-on to your website, select the page you wish to add it to and then click on "Vertical Flash Gallery" in the Webpage Add-ons dropdown list. You will see the widget gets added to the first column of the page. Click on "to Manage Flash Gallery Click Here"
Choose the gallery you would like to show on the webpage you are editing from the "Select Default Gallery" dropdown.