Grade and comment webpage

Webpage, written in PHP that is capable of: - adding / removing? / changing categories of products; - adding / removing / changing products; - each product has its' description, which consists of fields like name, description, dimensions, etc., saved in a mysql database - ability to vote for every product, to have the statistics of votes (total votes, average number of votes for every product) - ability to add comments to? products and see other comments - ability to attach images, for example scanned receipts etc. to one particular comment Every function should be implemented as a? PHP function so that the PHP can be deployed into a web page design, even after its'? change. ## Deliverables Basically, the functionalities are: - adding / removing? / changing categories of products/services; - adding / removing / changing products/services; - each product has its' description, which consists of fields like name, description, dimensions, etc., saved in a mysql database - ability to vote for every product, to have the statistics of votes (total votes, average number of votes for every product) - ability to add comments to? every particular product/service? and see other comments - ability to attach images and text documents, for example scanned receipts etc. to one particular comment - ability to mark some comment as a spam and listed in a administration environment (where moderators log in and there are options listed before: adding, removing, changing categories of products/services, adding, removing, changing products/services, adding new product/service and some others: adding new suppliers of products/services with their company, name, e-mail, changing their password (resetting their password) and the functionalities of a normal user also (mail, commenting, ...) - option to log in for suppliers and present their offers on their products' and services' subpages and change their contact info, see the grade of their customers - user registration and? simple message exchange option between normal users We have PHP 5.2.8 running on our web servers, therfore PHP +? MySQL is the preferred technology. Our previous design team lacked to follow the schedule and we are looking for a complete solution of web design and fuinctionalities implementation. Every function should be implemented as a function, that can be included via <?php? .... ?> code inside appropriate place in the PHP file, so that the design could be changed also? later. That's it :-)