Put the ArmTracking folder inside the kinova-ros directory which is present in your ros workspace directory:
..ws/kinova-ros/ArmTracking
Put kartik_home.scene file in the directory:
..ws/kinova-ros/kinova_moveit/robot_configs/j2s7s300_moveit_config/config
Put j2s7s300_demo.launch and j2s7s300_virtual_robot_demo_traj.launch in the directory:
..ws/kinova-ros/kinova_moveit/robot_configs/j2s7s300_moveit_config/launch