Moving a UI image by script

Hey
Right now I'm creating a menu using Unity and the UI system from 4.6. Basically I'm trying to make it so that if I press down then a certain image will move down to a specified position and if I press up it will go up again.
I've tried the GetComponent.anchoredPosition route, and I tried something like this using UnityEngine; using System.Collections; using UnityEngine.UI; public class Menu_Selection_Indicator : MonoBehaviour { Image [] images01; Image [] images02; int i = 0; void MakeActive (){ for( i = 0;i<6;i++){ %|1898136422_1|% images02[i].enabled = true; } } void Update () { images01.enabled = false; images02.enabled = false; if (Input.GetKeyDown("up")) { %|1096323275_3|% } if (Input.GetKeyDown("down")) { %|341979072_4|% } if (i>5) { %|-1306517619_5|% } if (i<1) { %|-1248293269_2|% } images01[i].enabled = true; images02[i].enabled = true; %|679944723_3|% } }

And although this isn't ideal because of the performance issues for having to turn on and off 10 different images, even this doesn't work, with me getting the errors "Assets/Scripts/CSharpScripts/Menu_Selection_Indicator.cs(41,13): error CS1061: Type UnityEngine.UI.Image' does not contain a definition for SetActive' and no extension method SetActive' of type UnityEngine.UI.Image' could be found (are you missing a using directive or an assembly reference?)"

and "Assets/Scripts/CSharpScripts/Menu_Selection_Indicator.cs(23,10): error CS1061: Type UnityEngine.UI.Image[]' does not contain a definition for SetActive' and no extension method SetActive' of type UnityEngine.UI.Image[]' could be found (are you missing a using directive or an assembly reference?)"
So my question is does anyone know of a way where I could just move my UI image's anchored position from one Vector to another.

Thank you

Dok