Develop News Posting System

Hello, I am looking to install a simple news posting system which will allow me to create main level categories, then child categories/web pages on the fly through my back end interface. The site was built from the ground up; it is our own proprietary software. We should be able to define the following for each new category: Active/hidden category name description image title tags, meta description, meta keywords We should then be able to add in web pages or sub categories to this main level category. We should be able to define the following for each webpage: Page name brief description long description image page title, meta description, meta keywords. Each category/webpage should have the following features: email to a friend ask a question form (allow admin to specify a email address per category/page)