In the Data Assist create pages wizard, on the manage pages tab, you can edit the results page layout to use the public layout instead of the admin layout.
to create admin pages and public pages, you need to run the wizard twice. If you go through this tutorial, it gives the steps for creating the admin pages in he first section and the public pages in the second section:
http://www.webassist.com/tutorials/Create-a-product-catalog-II-eCommerce-Series