You might want to run through install script now that you know what mistakes you made and double check a couple things.
On the config you must enter the
vb license number where asked ( this is very important for login ). You must also on the next to last step of install enter the cookie prefix as well which is also encoded into the password cookie ( this by default is bb but you can verify by looking at the license number and cookie prefix in your
vb config.php file )