Hi everybody! Stumbled across the Japanese ATTSS cover while on a Morning Musume IRC channel and put it up in a Yahoo group I just made. Here's the link:
http://groups.yahoo.com/group/tatufiles/files/
It's the only file there. If it doesn't work, it's because too many people downloaded from that group. I made a mirror of sorts, so you can try this one if the first goes down:
http://groups.yahoo.com/group/tatufiles2/files/
Hope you enjoy it!