Customization of PHP Script

Customize/Add On features to an existing, already well developed PHP script. Just need an add-on module written to make the execution of the script more efficient. Entails writing code to run the setup process an unlimited number of times, installing the script in seperate directorys on server, and setting up the adsense pages with different keywords. I will provide location of script and access to my cpanel where programmer can make changes to code. Appreciate quick response to this from any interested parties. Will also retain your services for a few other projects. Thanks!