changing an attachment’s parent

Of course, you know you can add the image to as many posts/pages as you want by selecting the Media Library, but I don’t see an option in the WP admin to change the post/page the image is attached to…you would probably need to do that directly in the database.

Hi! it seem there is one simple plugin, which gives you ability to change image “parent” : http://wordpress.org/extend/plugins/change-attachment-parent/