GameJolt API simple Score

Hello Guys. I'm realy mad right now becouse i rly don't know how to make a simple Score Board on Gamejolt.com. I tried everything out etc and i followed a Youtube Video to learn how to make a simple Score Board. I don't know how to programm on Cs and I always get an Error so i deletet everything... rage Quit.

what i won't you guys to ask for is, if some body make me the scripts i need. The score is saved in a Javascript so i need to talk from Js to Cs and that's rly complicated. I wana that GameJolt users can Log in in my Game and the Score should be saved in the ScoreBoard.

Here's the Gamejolt API tutorial. http://gamejolt.com/games/unity-api/15887

That's my Score Script. Here is the Score saved.

 #pragma strict
 public var points:float = 0;
 public var PointsInToString:String;
 public var PointHUD:UnityEngine.UI.Text;
 public var TextUI:GameObject;
 
 function Start () {
     PointHUD = TextUI.GetComponent(UnityEngine.UI.Text);
 }
 
 function Update () {
     PointHUD.text = points.ToString();
 }

I would be rly thankfull for the one who can solve my problem. (sory for my realy bad English)