Creating a Basic Platformer tutorial help

I was recently going through the Creating a Basic Platformer Game tutorial, and I encountered a problem recreating the code. At around the 39:00 minute point, the coins are not spawning and the instructor selects "Apply prefab" and gets the program to work correctly. I was not able to get the coins to spawn correctly (the same problem as in the video before the apply prefab was selected), and I do not see the "Apply prefab" option. The script code was copied and pasted, and I have gone through all the previous steps up to that point to make sure that they were correct.

Here is a link to the video: http://unity3d.com/learn/tutorials/...ning-archive/creating-a-basic-platformer-game

Does anyone know what I could be missing?

 

Have you selected the right object? The apply button only appears in instances of the prefabs.