Beginner - motion alarm


I have the arduino starter kit and have worked though many of the projects, but I'm still very new to this.

The whole reason I bought this kit was I have an idea and want to build a prototype. To get started I need a simple motion sensor alarm. I bought a 10 pack of PIR motion sensors and tried to follow diagrams and code I found online to get them to work. But I'm not getting anything to work. Could anyone provide me with some guidance on how to build this circuit?

Please show what sensors you have purchased, and show what code you have been using, and show how you have wired them up.

An example of Motion Sensor info and code On THIS Page