leave out the periods, that is the space where you paste the Image url.
but first, unless your just copying something from a google image search, you need to host the pictures externally. Go to imgur.com, make an account and upload your pictures there-- trust, that is easier than it sounds. once uploaded, right click on the image and select 'copy image url' or navigate just over to the right of the image selected and copy the link that says BCC code (message board and forums)
now reply to me with a quote to see what it looks like when you paste an image url between the two BCC tags.