Setting up Unity Steer

Hi, I have downloaded Unity Steer and Unity Steer examples from Ricardo J. Mendez github page. Now I have open Unity Steer Examples, but when I try to load some scene from the scenes packages( for example Pursuit sample), it doesn't start at all. I have checked web, and it says to integrate Unity Steer into Unity Steer Examples project. I am new one to Unity and I have no clue how to do it, would you be so kind and tell me step by step how to do it? Just for the note, I am C# programmer for years, and I am new to Unity, so please have understandings for me. :)