BigCommerce Site Tweaking Basics - repost

Optimizing for SEO. Correcting an "Add To Cart" button problem where the 'Quantity' button is showing up instead, due to a custom template minor issue. Also change the look of the drop down menu list image to a different look from the white drop-down that we have now. Get the jQuery slider to rotate with the featured items, which is already installed, just needs tweaked, and minor design issue with keeping the images inside border Also I would like you to review how our site is set up and take a look at our web-master tools to see why we are getting duplicate titles from the sitemap, and tell me if we should use a landing page for our home page instead of '[login to view URL]' as the home page, which will be easy to do if that is the answer.