Problem to ADD users

Hi. I get the xwiki-web-standard-1.1-milestone-3-hsqldb.war and put it in my tomcat 5.5.23 using Java 1.6.0_01. I change the hibernate file to use MySQL DB and I import the Default xar file (xwiki-application-panels-1.1-milestone-3.xar)..... So now i can't ADD a user in my xwiki and the Admin user don't exist.... so i try the superadmin user but when i click in User&Groups in the link the users page... don't have a link to ADD a new user. How can i add a new user?