You want to delete the photos from where, the website or from Lightroom? If from Lightroom, do you want to delete them completely, or just remove them from Lightroom? It's all in the details.
Thank you, but i like to know how can i delete the photos from the internet site. Since i'm able to upload them with Lightroom, i'm sure there is a way to re-organize and/or delete from Lightroom as well, no?
I don't bother to post to Internet websites from Lightroom. But I think it will be necessary for you to go to the website and use what ever tools are available there to remove images from the website.