Hi Kritip:
You can add the image as you would normally add an image to the front panel (Adding GIF or Other Images In LabVIEW) and then resize it to fit in the cluster and then place it inside the cluster. This will cause the image to be bound to the cluster.
Hope this helps!
By the way, when you have a question it is usually better to create a new forum post rather than asking in an old post, it will be more visible and more people can then help you.