I encountered a strange problem in my newly installed file-upload contribution with the click-to-view modification of admin:
The uploaded files (in images/uploads directory) have permission 666 (rw-rw-rw-) so that it's not possible to view any of them.
The images and uploads directories had been chmod-ed to 777 before uploading.
The owner and group of the uploaded files are 99. (Sorry I'm a noob. What does 99 mean?) The situation is the same for uploaded category and sub-category images. But the latter don't have the same problem. (They can be viewed!)
In fact, I had modified the codes (in product_info.php, shopping_cart.php, checkout_confirmation.php & account_history_info.php) in order to enable customers to view the image files they upload. The problem prevents everybody including myself (the admin) to view the files from the web site.
Please help me. Thank you very much in advance.