add-on module to install (oscommerce)

Hello, i have a oscommerce website and i have modules to be install. kindly check below module, and who is intersting to install it please send PM and ill send you the website address. [login to view URL] Dynamic Sort By Price [login to view URL] Easy Meta tags [login to view URL] Gift Certificates Module [login to view URL] Product Listing Enhancements, Thumbnails & Manufacturer Headings [login to view URL] Sitemap SEO [login to view URL] All Products SEO [login to view URL] Cool Shopping Cart in Header [login to view URL] Tell a Friend Button for Product Info Page [login to view URL] Country-State Selector [login to view URL] Header Tags SEO V 3.0 [login to view URL] Who's Online Enhancement [login to view URL] additional image addons [login to view URL] RokSlideshow [login to view URL] Multiple Sales Per Product