Add features to our image hosting script

We own a simple image hosting script and want to add new features. 1) The IP of the uploader for each image is recorded. We want to be able with a click of a button remove ALL images that IP has uploaded (either with an account or anonymously) AND ban the IP address permanently. All removed images should be replaced by an image that says something like "This image has been removed!". We want that button to be visible on an uploaded image only if an admin is logged in. When the new button is clicked a message saying "Are you sure you want to delete ALL uploader's images?" should appear. Right now there is an "delete" button on each image that only delete that single image. That button we want to keep. 2) We need a script that can, when executed, go through file names, titles, descriptions etc. and remove all images that has something matching keywords from a list. This script will be setup to run on a cronjob. 3) A way to add a referring url/ip to a list of banned sites/ips so if any visitors originates from a site in that list they will see an "Unauthorized" page. You need to tell us what you changed/created/updated on our existing files or files you create so we our self can update our other sites running this image hosting script. Can you do these 3 tasks? You will get access to all files and also a live working site. This needs to be done within 2 days.