hummm, i think the first chmod needs to be after the WA_DFP_UploadFiles command instead of before it:
<?php
WA_DFP_SetupUploadStatusStruct("WA_UploadResult1");
if($_SERVER["REQUEST_METHOD"] == "POST"){
WA_DFP_UploadFiles("WA_UploadResult1", "ProductImage", "2", "[NewFileName]_[Increment]", "true", $WA_UploadResult1_Params);
chmod($WA_DFP_UploadStatus["WA_UploadResult1"]["serverDirectory"], 0644);
chmod($WA_DFP_UploadStatus["WA_UploadResult1"]["serverDirectory"]."".$WA_DFP_UploadStatus["WA_UploadResult1"]["serverFileName"], 0644);
}
?>
<?php
WA_DFP_SetupUploadStatusStruct("WA_UploadResult2");
if($_SERVER["REQUEST_METHOD"] == "POST"){
WA_DFP_UploadFiles("WA_UploadResult2", "ProductThumb", "2", "[NewFileName]_[Increment]", "true", $WA_UploadResult2_Params);
chmod($WA_DFP_UploadStatus["WA_UploadResult2"]["serverDirectory"], 0644);
chmod($WA_DFP_UploadStatus["WA_UploadResult2"]["serverDirectory"]."".$WA_DFP_UploadStatus["WA_UploadResult2"]["serverFileName"], 0644);
}
?>