ActionScript 3.0 :: Random Number To Textfield?

I'm trying to create a keypad, that when the number buttons are clicked, it will show the corresponding numbers in a textfield.

I'm also trying to get a random 6 digit number to appear in another textbox and when both the random textfield and keypad textfield are compared and found identical, it will go on to another frame.

Now! the problem is two fold:

1) the random number function isnt displaying the random number in the textfield. the text field is dynamic and called guessStringText. Heres the code im using for that..

var guessStringText:Number = getRandom(); //this is in the main fla
public function getRandom():Number { //this function is in an external AS3 file
var high:Number = 000001;
var low:Number = 999999;

[Code]....

These problems are starting to get frustrating lol. I feel as if I'm hitting my head off a brick wall. Every time i find a new way to try writing the code it still doesn't work.