Let me see if I can determine how far you've gotten. Can you login in to your hosting controller? Click on estore found at the bottom left. Then click on add estore. Then click on store admin which should be to the right, next to your domain name. That should bring up another window for you to log in to your Feature Cart. From there click on configurations. Scroll down to Custom Mode #1 Frames and Themes. Then click on Themes and there you can scroll through a variety of themes. HTH!