[xwiki-users] New User Interface

Hi, I have a problem upgrading Xwiki at release 1.2 from 1.1.2. I can't get the new rights Management interface. I replaced the WebApp and copied the files hibernate.cfg.xml, xwiki.cfg in the new version. I'm using Oracle and so I replaced the hibernate Jar. After restarting Tomcat I imported the new XAR. When I try to open "Global Rights" I get the old rights management interface. I hope someone can help me, Thanks, Loris