Clone of download.com or softpedia.com

We require a clone of above mentioned sites, not going to technical details The same should be SEO optmized, template based, RSS support for all sections, and also contain google/yahoo sitemaps. We require a vbulletin integration of this sytem. All the users registered on our vbulletin forum should be able to comment on files made for download Do not reply back unless you have some live examples about this project.