Hi friends
The page of ISOP (project page of BatLab, Yamato e.t.c. ) is down
But there's a mirror at  http://isop2400.hp.infoseek.co.jp/
For the Miyou (Posette) stuff click the "ISOP" banner   

Sorry, I can only see 'Jatex 3d East meets West' and links to wedding, pant-suit and mermaid-line freebies for V1/2...

The top & bottom links are alphabet soup, none read ISOP when mouse-overed...

The link is just below the top "asian letter noodle soup" and above the thumbs for the V2 stuff: http://isop2400.hp.infoseek.co.jp/miyou2.htm

Yep, also, those clothes are some of the most beautiful things made for Posette      

Aha !!

I did not realise those pretties were for Posette, I thought they were customised for Miyou !!

Now the 'gotcha': I'd found Alice among my archived zips, had installed the costume and was using components 'mix & match'...

Hmm: I wonder if I can put Miyou's face on Posette ??

Yes, she is a Posette so you can simply use the morphmanager to copy the files from this character to another one

I cant find it.  

As most of the older Japanese freebie sites, this one is down, too, since a while.
Trying the "wayback machine" on web.archive.org I found this page working
http://web.archive.org/web/20070506203257/iso.power.ne.jp/
Click on "project" most of the stuff seems to be working