Developer for software for copy products and update

Custom Software is required to automate the transfer of images and specifications from another website to my website. There are several thousand image and specification sets to transfer, so manual copy and paste operation is not practical. The website where the images and specifications are to be copied from are varios, as there are many supplier that will come later , but as an example is : [login to view URL] The website where the images and specifications are to be copied to is: [login to view URL] If it is not possible to build a fully automatic Custom Software for this task, then we could consider using a macro so that an operator can transfer the images and specifications very quickly with 1 or 2 keystrokes per transfer. Another thought ... If I have a "fully automatic" program for transfering the files, how will I tell it which files or where to start and stop? I think there will need to be some manual control involved, whichever way you do it. A clear set of operating instructions (in English) must also be supplied.