Ok, so you want to instantiate N objects using one as the origin. That's what prefabs are for. And here's one manual guide to do exactly that.
So, instead of using GameObject.Find
you just use a variable, though you could still use Find if you wish. I'm also taking the liberty to add efge's code below, to make sure the instantiated objects will have same name.
// Instantiates a prefab in a circle
var prefab : GameObject;
var numberOfObjects = 20;
var radius = 5;
function Start () {
if (!prefab) prefab = GameObject.Find("GO1");
for (var i = 0; i < numberOfObjects; i++) {
var angle = i * Mathf.PI * 2 / numberOfObjects;
var pos = Vector3 (Mathf.Cos(angle), 0, Mathf.Sin(angle)) * radius;
var clone = Instantiate(prefab, pos, Quaternion.identity);
clone.name = prefab.name;
}
}