If you ever get a warning in the backend of oscommerce where it reads “Warning: No file uploaded” we have found an easy fix. We are posting it here because we have searched high and low for this fix.
In your htaccess file that is located in the main oscommerce folder add the following line of code:
php_value always_populate_raw_post_data 1
That should take care of your problem. We searched high and low for this so HAD to post it here as we are sure there are others looking for the same answer.