on the update page, change line 97:
$WA_fieldValuesStr = "".((isset($_POST["CategoryName"]))?$_POST["CategoryName"]:"") ."" . "|�|" . "".$WA_DFP_UploadStatus["WA_UploadResult1"]["serverFileName"] ."" . "|�|" . "".$WA_DFP_UploadStatus["WA_UploadResult2"]["serverFileName"] ."";
to:
$WA_fieldValuesStr = "".((isset($_POST["CategoryName"]))?$_POST["CategoryName"]:"") ."" . "|" . "".$WA_DFP_UploadStatus["WA_UploadResult1"]["serverFileName"] ."" . "|" . "".$WA_DFP_UploadStatus["WA_UploadResult2"]["serverFileName"] ."";
there will be an update released in the next couple of days to correct the issue. See this thread for more details:
showthread.php?t=24550