class.upload.php is a powerful and mature PHP class to manage uploaded files, and manipulate images in many ways. The script is available under a GPL license.
Are you sure /www/htdocs/keesinternetnl/http/fotoalbum/uploads/thumbs/ is writeable by your web server? Try to chmod it to 777 just to see what it does.
In your example above, can you check if /tmp/phpnktTHE is a valid image?Reply
In your example above, can you check if /tmp/phpnktTHE is a valid image?