For me, it is probably this place:
$this->handle_bbcode_img_match('http://photos-h.ak.facebook.com/photos-ak-sf2p/v338/232/45/558245290/n558245290_4085895_9878.jpg')
$this->handle_bbcode_img_match('http://photos-g.ak.facebook.com/photos-ak-sf2p/v338/232/45/558245290/n558245290_4085894_9567.jpg')
$this->handle_bbcode_img_match('http://photos-g.ak.facebook.com/photos-ak-sf2p/v338/232/45/558245290/n558245290_4085862_5534.jpg')