Note 1 When you delete images from your Media Library and a visitor's browser calls for them to be displayed they aren't there because you deleted them from the server by deleting them from the Media Library. You will need to upload the images again in order for there to be anything to display to visitors.
Note 2 You do not need to post off-topic into threads. You can create your own thread by simply clicking this link on found on the front page of the support forum and/or in the sidebar on the front page of this forum > Support > http://en.forums.wordpress.com/forum/support#postform
Please do that in the future.