PHP files required for a ready website with its mysql database and all for uploading and retrieving uploaded pictures

i have ready web site with its querys, html, mysql and all. whats needed is the php files to be written and attached to one of the pages that will be responsible for users documents.. these php files will be responsible for uploading documents (Pictures) and retrieve them in another page where a user can edit his online application... and create a new application.. you will be required to do the php files and make them work with the website .. i can be flexible with upload manager if you have any ideas and you may edit the sql database if you wish so but its done with ERD an all and its ready.. i uploaded 3 pictures where these php file will work one of them is the document manager page.. the other is editing an application form.. and last new application you are not required to do the files for adding new application information to the database or any other thing just whats mentioned above.. btw this is a school project.