Hello … I am looking for a someone to install PHP for us … I have the script but need help making it work on our webserver
There are several ways to do this depending on your machine and you did not even mentioned that.
Maybe, what you are trying to do is to install not only PHP but all the technologies working together, if that is the case, simply search for the specific case, say you want to use LAMP or WAMP.
Or if you have existing server as you mentioned, if that is Windows OS, you can look for specific situation just like yours.
Promise, the tutorials out there are overwhelming.