Hi, and welcome to the forum.
Some feed back for you...
Why do you have two warning pages? A single warning page is probably a good idea these days, but many believe it has a negative impact on search engine optimization (SEO). You should design your warning page so it has a lot of good key words in it. The best way to accomplish this is to put a key word rich paragraph on the page that explains what the site is about and offerers its visitors.
You already have a page created to give visitors a larger view of the box covers, but its not obvious a visitor can click on the box cover image to load it. Link to them as "More Details", or "More Information". On these individual pages put the video description, cast, and other details commonly found at other on-line DVD stores. This will help with your SEO. You should also have a link to the shopping cart on each of these pages.
For better SEO add alt text to each of the graphics on your web site.
The file names used for pages on your web site should be key word rich.
The more key word rich text you have on your pages, the better your SEO.
The free photos do not load when you click on the thumbs.
Surfers will not discover the free pics unless they scroll to the bottom of the page. You should not assume they will, before deciding to leave.
You should get your site listed in as many adult link directories as you can. A lot of them are listed in my industry directory...
http://www.ingayporn.com/links/Traffic_ResourcesLet your traffic build up a bit before looking for link exchanges with other sites.
Hope this helps.