Only Content Distribution service is available on Mininova now
They have to compy with some court ruling. Following is an extract:
Full story here: Mininova limits its activities to Content Distribution service at Mininova blog

Today is an important day in the history of Mininova. From now on, we are limiting Mininova.org to our Content Distribution service. By doing so, we comply with the ruling of the Court of Utrecht of last August.
Unfortunately the court ruling leaves us no other option than to take our platform offline, except for the Content Distribution service. According to the verdict (Dutch link) we have to prevent uploads of torrents to Mininova that refer to certain titles or to similar-looking titles. We’ve been testing some filtering systems the last couple of months, but we found that it’s neither technically nor operationally possible to implement a 100% working filter system. Therefore, we decided that the only option is to limit Mininova to Content Distribution torrents from now on. We are still considering an appeal at this moment.
Full story here: Mininova limits its activities to Content Distribution service at Mininova blog