Opencart shopping cart software works right away after installation but you will want to customize it by removing some options that you don't need such as the "compare products" feature.
I will go in and edit opencart for you to do the following customizations & clean the look up:
1. Remove Currency & Language Drop-Downs Altogether
2. Remove Wishlist
3. Remove "powered by Opencart"
4. Opencart Grid View by Default
5. Disable account registration and make it quick checkout (like I have here on phuturecode.com)
6. Remove "What would you like to do next?"
7. Fix the opencart "add to cart button" not working bug (by editing the .htaccess file)
8. Remove breadcrumbs.
9. Make post code/ zip code required.
10. Remove product compare, sort options and display options.
11. Redirect to cart after CONTACT US is submitted.