[galaxy-user] How to become admin on Galaxy Cloudman

Hi all, I just established Galaxy Cloudman on Amazon EC2. I would like to add some tools in tool shed to to it. However, I need to be the admin to do this. Once I got into the galaxy cloudman, I had to register a new account and then log in. The admin interface (described in tool shed wiki) didn't appear at all. How could I log in as admin on Galaxy Cloudman? This may be a very simple question, but it bothers me two days. Looking forward to your replies! Best wishes, Yan