GUI Problem

i've created GUITexture with scripts: created empty gameobject and assigned script. there is the script: var finish : Texture2D;

 function OnGUI () {
 GUI.DrawTexture(Rect(0,0,Screen.width,Screen.height),finish);
 }

then i wrote this script and assigned it to the my gameobject which i wanted: var GuiShow : GameObject;

 function OnTriggerEnter(hit : Collider)
 {
  if(hit.gameObject.tag == "Finish")
  {
  GuiShow.active = true;
  }
 }
  
 function Start(){
 GuiShow.active = false;
 }

now i have a such problem: i have GUIText in the scene and i want it to appear on this GUITexture and i have no idea how :(