Is that link working? I just get an error page. When I search manually using "iene00602" I get nothing, and even searching "iene" and then sorting by release date, all recent videos (IENE-601, 603, 604, 605, etc) all show up, but 602 is missing.
Hmm... didn't know that, but why are the other videos available, like I said above, but not this one? That's strange. Oh well.
U can buy it here, faster than DMM: http://ec.sod.co.jp/detail/index/-_-/iid/IENE-602