sallam.. no problem.. its http://tinypic.com here you can upload pic and they will generate different picture link. Use linke something like http://tinypic.com/adsfsa.jpg (with extension) to embed picture.. Best of luck
you cannot upload picture here but there are free picture hosting server like tiny pic... there you can upload the picture and here use that link to embed that picture.. if you dont know how to embed picture let me know...