You are using a translator, aren't you? I can't understand anything from that sentence, as far as I could se you want to delete a picture called "it.png". So yeah, learn English or don't speak in the English forum.
Oh, ok.
You need an image host like www.imageshack.us, then upload the photo, then put [ img ] and [ /img ] ( no spaces around the "Direct Link" that the photo hoster provides. Like I can type this into the thing to make myhost.com/myphoto.png to show up: