Actually it looks simpler than that, you are using a relative path to include your flash which is not there, just embed /slide.swf and not just slide.swf
Actually ito asta mas simple kaysa sa na, ikaw ay gumagamit ng isang kamag-anak na landas upang isama ang iyong mga flash na kung saan ay hindi doon, lamang embed / slide.swf at hindi lamang slide.swf