Good news though, the download links to the first volume have been fixed, although I do not know how long they will last. See the Volume I post for MD5 sums.
Mediafire links have stopped working (again), I will work on fixing them eventually.
The 4shared mirror links however, still function:
And if those fail as well, there's a link to a torrent. Click the following to open in your torrent client: magnet link
The torrent is of uncertain reliability, but will probably work faster than the hosted downloads.