On Taya's blog, there's a subsection for his distributed voicebanks:
http://tayasoune.blog56.fc2.com/blog-category-5.html
The first and most recent post contains the link to his VCV, and the second will be in CV.
I haven't followed the links, so I'm not completely certain, but you should be able to find either voicebanks from this page onward.
EDIT: Sorry, it appears his CV is 404'd.
EDIT2: Following the VCV link will take you to a Nico video, where the DL is in the description. You have to have a Nico Nico Douga account to access it.