using UnityEngine;
using System.Collections;
public class OnCollision : MonoBehaviour
{
Application.LoadLevel("CInt#");
}
[/QUOTE]
As mentioned above, you will need a Class to actually put your methods into. And you do want to call that method which is what is done in the post over mine.
A good way to see if something works before you start putting in a lot of code is to debug.log to see if the player is actually coliding with the mesh as well.
Try to use the scripting manual as well to Get some good examples of how to write code lines.