question about creating new user and skin customization in xwiki 1.0 b2

Hi, I downloaded the latest xwiki source code (last night)from svn and have delployed it in a tomcat server. It looks great and I have managed to hook it up with our openldap server for authentication. But I couldn't figure out the following issues: 1. I can log in via superadmin and the users from my ldap registry, however I don't know how to create a new user. I tried to follow the FAQ "... All users registered on your Wiki are listed in http://localhost/xwiki/bin/view/XWiki/XWikiUsers" , but I got "pages cannot be found" error. How can I create a new user? btw, I thought I should see a list of users since I am using ldap now, but I cannot see any. When I go to the Administration link and go to the Users/Groups, I cannot see any users/groups at all. 2. I cannot see any differences when I log in as superadmin and a user from ldap. I thought I should see more admin items for superadmin such as the "admin" user in 0.984 version. For example, I cannot see "more action" link at all. How to setup initial securities ? I found the previous version of xwiki (e.g. 0.984) is more intuitive but I cannot figure out how to do it in 1.0 beta 2. 3. I tried to follow the skin section of the Admin guide, but I cannot access http://www.xwiki.com/xwiki/skins/xwiki10b1/ even if I logged in. And I cannot continue to follow the instruction since I cannot see the "more action" option at all. Does the default user Admin/admin (in 0.984) still supposed to work? Any of your help to solve this problem will be highly appreciated. thanks -Jimmy