Okay, So what objects are in your hierarchy?
I read your code like this:
When this object is loaded look for (Game)Objects 1 through 5 and save their positions into Vector3 objects labeled "Object_1" through "Object_5".
If you'd like to access the transform try something like this:
GameObject.Find("Object_1").transform.position;Read more about selectors here: http://unity3d.com/support/documentation/ScriptReference/GameObject.Find.html
Each GameObject has a Transform component automatically: http://unity3d.com/support/documentation/ScriptReference/Transform.html
Also, you might want to try and use tags if you find yourself accessing a lot of the same type of object. read more about them here: http://unity3d.com/support/documentation/Components/Tags.html
Good luck with whatever you're doing. If you want more specific information try expressing what the overall goal is next time. :)