If you really want the file(s) and the uploader doesn't respond or update the links you have to make a request in the community.
It's basically the same if you want an updated version of a course. Usually you can ask for it as a comment in the specific post or by using PM to contact the uploader.
By using the options in the original post first there is a chance that you get what you want without actually making a request but it's not a guarantee.
Just allow the uploader a couple of days to respond and if you don't get a response, it's probably because the uploader is unable to help you.