MyDoorOpener.com

How do I edit MyDoorOPener.ino in Arduino IDE (XP). I have extracted arduino-1.0.3-windows and MyDoorOPener project zip. I can see the MyDoorOPener.ino file but not sure which one is the Arduino.IDE. I am attaching the picture of all Arduino files

Run the Arduino IDE by double-clicking the icon with the white on blue infinite logo,
the one that says "Arduino" beside it, on your print screen.

From within the Arduino application (the IDE), use the File -> Open menu option to
load up the "MyDoorOpener.ino" file. From there you can edit the file, save it and
upload it to your Arduino controller.

There you go ...

Thanks. That worked. I looked up myipaddress.com and used that IP address in format http://xx.157.123.xxx.xxx:80 in the communication URL part of Controller Configuration.
However the request on my iphone is getting timed out. How do I overcome this.

Thanks. My app is running fine.
I am able to open the door when I am not connected to my home wifi. http://myinternetip:80 works externally. To make the app work within home wifi I have to change ip address to
http://myrouterip:80

You should always use the external (internet) address. Use a service such as DynDns to overcome your ISP's dynamic IP address allocation. You wil also need to configure your home router to forward (NAT) an incoming external/internet/public port to your Arduino's internal/private IP.