To add a new tracklist, it's not too evident at first, but you have to click on "Edit -> Add new tracklist" in the upper right (next to "Discuss").
The number of CDs is modified in "Edit -> Album Info", then scroll and "add / remove" in the Media Information section. However I'm not sure if new users can change that. You can always ask in a thread or PM the staff.
Btw, artist links and edits are moderated, so they don't reflect inmediatedly. It may not be evident either.
I've fixed the album some, but the credits may need to be revised though, ex.- seems Hiroshi Watanabe (Quadra) remixed track 04 rather that compose it.
It'd be great if you could recheck it.
(more info here:
http://k-nife.web.infoseek.co.jp/texdata/TexhnOST2.html)