>   I store picture data in database ,and a servlet is 
> employed to display pictures. When I use HTTrack to 
drag , 
> the picture is always stored with 'gif' extention.If the 
> picture is jpeg or other format essentially , the picture 
> can not be displayed in the draged htmls By IE6. How can I
> resolve the problem without change my program ?!

Are you sure the servlet is giving the correct MIME type 
during HEAD requests? If not, there is no solution. You can 
try to activate "Spider / Force old http/1.0" however, if 
this is just a head/get problem.