if you join as a premium member you can post directly and have albums on your profile page. if you haven't become premium, then you can post links to free photo hosting sites like flickr or photobucket. you would copy the link and paste it in your post.
http://www.flickr.com/photos/30423587@N04/2849022621/in/set-72157607235907438/
http://www.flickr.com/photos/30423587@N04/2849022621/in/set-72157607235907438/