When i recieved it the Zen Cart header is there... How do i remove it...???

and the powered and copyright by zencart...



The text write up i created it dreamweaver and looks fab when i entered all the coding into the coupon email, and sent it to myself, there is no colour no text sizes just plan old black and white small times text...


What am i doing wrong?? Am i putting th ecoding into the wrong box???