Admin Home

Hey all, have loaded the 6.1, removed the install file, and read the install text. In ithis it recommends that to access admin home I should use http:mysite.com/sub-directory/admin. Well am doing this and it opens page with Profile not available for view and standard either join now or member login! Is there a different login page/style? Cause admin user and psswrd are not working through this one!