WordPress MU

Hi, 10 minutes ago, I was working on the site "tvomun.terakki.net/blogs". I added a new use and make hiç subscriber to see what can a subscriber do. then I entered to the system with that user account. this is the only thing that I do..!! Then when I try to open the site, it directs me to wp-login.php url and opens dashboard.. and in dashboard I see that all the changes has gone.. I try to install the same page, link, themes but when I click on visit site, nothing happens.. I dont know what hapened:(( please help me

Because a subscriber can't do anything more than that.

http://codex.wordpress.org/Roles_and_Capabilities