Your links go to a page that will only work for you, or only work once (depending on how Mediafire does their cookies and such).
For example, I think you expect that
http://download898.mediafire.com/c0srhu ... 101010.zip is a direct download, but it will just redirect to
http://www.mediafire.com/?9bb4bwn572pcy5d which is the link you'd need to use anyway, and is the link used on the first page of this topic.
The "9bb4bwn572pcy5d" part is a unique key in Mediafire's database that will identify the file, but the "c0srhumc3j7g" part of your link is a randomly generated key that is a one-time use key specific to you or a cookie Mediafire set in your browser.
If you want to automate downloading the HQ links, you'd need a program that handles the cookies and/or javascript convolution that Mediafire presents on the download page that link goes to. The actual zip file is not created in the final downloadable location until certain conditions are met to satisfy Mediafire.