A few adons to an existing script

I need to change and correct a few things on our ad system script: - PayPal is not working at 100%.. When a user upgrade their ad the money gets here, but I must go and upgrade it manualy - Don't let users upload images with more than 400 pixels wide.. show a msg if image is bigger - Confirm that the script eliminates all closed ads 30 days after they close, if not, create a new routine to eliminate them