1. A print order system comprising: an order reception server installed at a printing service provider having a photographic printer to print image data, the order reception server capable of receiving the image data and order information regarding the image data via a network; and an order terminal connected to the order reception server via the network, the order terminal generating the order information and placing a print order regarding the image data by transferring the order information to the order reception server while directly accessing the order reception server, the order terminal generating processed image data by carrying out one or more types of image processing at different levels on the image data regarding which the print order is placed, by using different image processing conditions, displaying processed images represented by the processed image data on display means for the type or each of the types of the image processing, receiving selection of a desired one of the processed images for the type or each of the types of the image processing, and sending to the order reception server the image processing condition or conditions used for generating the desired processed image or images that have been selected, together with the order information and the image data, and the order reception server receiving the image processing condition or conditions for the type or types of the image processing, and being connected to image processing means for carrying out the image processing on the image data based on the image processing condition or conditions for the type or types of the image processing, wherein generation of the processed image data, display of the processed images, reception of the selection of the desired processed image for the type of or each of the types of image processing, and transfer of the image processing condition or conditions are carried out by a program installed in the order terminal, the program causing a computer to execute the procedures of generation of the processed image data, display of the processed images, reception of the selection of the desired processed image for the type or each of the types of the image processing, and transfer of the image processing condition or conditions.