how do i attach GUITEXT to a prefab

Hey guys, how do i attach a GUITEXT do a prefab, its important because one of the prefab gameobjects detects collision which has an effect on the score, but it wont let me drag the GUITEXT onto the script slot.

The typical way is to initialize it in Start() on a script in your prefab using GameObject.Find():

private var score : GUIText;

function Start() {
    score = GameObject.Find("Score").guiText;
}

This assumes the game object with the GUIText for scoring is named ‘Score’. Change as appropriate.