Once I added the permissions to the images\upload directory, the products_insert.php page reloads with the following error:
PHP Fatal error: Call to undefined function imagecreatefromjpeg() in C:\Inetpub\wwwroot\hcprivate\purgero\urgero.com\www\WA_DigitalFilePro\HelperPHP.php on line 844
line 844 --> $src = imagecreatefromjpeg($imageFilePath);
There are images in the upload folder too, now. Although they seem to be encrypted.
I searched the webassist forum, and found the response about uncommenting the: gd.jpeg_ignore_warning = 0 in the php.ini file. I did that, but no change.