In the first message, clicking on that link and translation shows that the password to be inserted is either invalid or expired.
There must be some way to retrieve that password and insert to open a valid download link, somehow.
ATM, there is this other link which requires another registered userID and password on a separate site (it's in Chinese again) at: 提示信息 - Video Game Music Union - Powered by Discuz! (
http://www.vgmu.net/bbs/forum.php?mod=viewthread&tid=7429&extra=) and matters got complicated that each registration process will be reviewed thoroughly by admin; they may reject when they see fit. So sad. :(