This hopefully helps:http://developer.exitgames.com/quicksta ... iveminutes
If you're stuck, let us know where exactly. Check the logs.
About the requirements: http://developer.exitgames.com/overview/requirements
You don't have to adjust a lot, if your client is running on the same machine. Then 127.0.0.1:055 can be used in your client code to connect to Photon. Check out the Realtime Demo for more.