For the large image, the code is:
$WA_DFP_UploadStatus["WA_UploadResult1"]["WA_UploadResult1_1"]["serverFileName"];
for the thumbnail, the code is:
$WA_DFP_UploadStatus["WA_UploadResult1"]["WA_UploadResult1_2"]["serverFileName"];
so change line 82:
$WA_fieldValuesStr = "".((isset($_POST["id"]))?$_POST["id"]:"") ."" . "|" . "".$WA_DFP_UploadStatus["WA_UploadResult1_1"]["serverFileName"] ."" . "|" . "".$WA_DFP_UploadStatus["WA_UploadResult1_2"]["serverFileName"] ."" . "|" . "".((isset($_POST["imagelabel"]))?$_POST["imagelabel"]:"") ."";
to:
$WA_fieldValuesStr = "".((isset($_POST["id"]))?$_POST["id"]:"") ."" . "|" . "".$WA_DFP_UploadStatus["WA_UploadResult1"]["WA_UploadResult1_1"]["serverFileName"] ."" . "|" . "".$WA_DFP_UploadStatus["WA_UploadResult1"]["WA_UploadResult1_2"]["serverFileName"] ."" . "|" . "".((isset($_POST["imagelabel"]))?$_POST["imagelabel"]:"") ."";

