PLEASE NOTE : I found these links on an external site (needless to say, they're virus free). I'm not sure whether this fits the forum guidelines, though ; if not, I'll remove the links and re-upload the album myself. Here is the link to the original site : http://www.sonixgvn.co.cc/2009/12/ys-seven-original-sound-track.html

This being said, and after some time roaming the web, I finally found the YS Seven OST (As far as I can tell, only the Game Rip version was available on these forums).

Disc 1 : http://rapidshare.com/files/319370172/YS7_OST_D1_sonixgvn.rar
Disc 2 : http://rapidshare.com/files/319368795/YS7_OST_D2_sonixgvn.rar

Enjoy :)

EDIT : Password is sonixgvn.