Anchoring & scale problems with GUI

Unity 4.6 JavaScript

Im trying to anchor GUI elements that are all displayed and controlled through script.
My main screen & H.U.D. are anchored fine & scale perfectly, but i can not get the GUI to stay in a fixed position or for it to scale. The best ive been able to come up with is close to being fixed, but is not truely.
Here is my code, if anyone can point me in right direction to achieve this without using the editor to place box,buttons ect, i would be very gratefull.

function Start()
{

Camera.main.aspect = 2248f / 1280f;

a = (Screen.width/2 +0f*Screen.height);
b = (Screen.height/2 +0f/Screen.width);

}


function OnGUI()
{

GUI.Box (new Rect (a/213*20,b/39*20,Screen.width/18 +0f*Screen.height,Screen.height/18 +0f/Screen.width), "" +score);

}

as you can see this is very messy and a real nightmare to position correctly, and it dont anchor/scale precicly.

 

well, i found a great simple solution here... http://forum.unity3d.com/threads/manage-gui-elements-for-any-aspect-ratios-2d-3d.227935/

the other issue is with fonts scaling, the method im using atm is "if screen.width < n, then set GUI.Skin fontSize to the size required"