Database Directory with Membership Management

I am seeking the development of a directory listing service with the following features: Member Profile Management system with complete modify/delete/update/photos/search features. Internal messaging system with complete Send/Inbox/Reply All/Reply/Folders/Address book capabilities. 100% template based system using the Smarty template engine, so we don't need to edit any code. Ability to create different skins and implement different languages. All system configurations are performed using the browser through the administrator panel. Photo Album with administrator approval. List of Online users. Detailed User statistics. Administrator capabilities to full view/delete/modify/update user profiles. Very secure session management system without client side cookies, all pages are tracked using the internal session IDs, User session expiration after a configurable amount of time. Audit logs. Mass Messaging for administrator. Admin is able to send messages to all users or to a searchable list of users. Mass Messaging / Emailing for administrator. Billing System Support. Policy Agent. This enables you to create different priviledges and roles. For example we may want to separate pages for clients, suppliers and administrative staff. Tell a friend feature scalable and ability to support 100,000's of users Platform should be unix based. ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Installation package that will install the software (in ready-to-run condition) on the platform(s) specified in this bid request. 3) Complete ownership and distribution copyrights to all work purchased. ## Platform Application can be developed using any language except VB. Please describe what language you recommend for application. Stability is important.