Please help with installing!

Hi, I’m new to wordpress and I’m stuck on installing it.I was reading the instructions readme and it says to change your data base connection…

“Open up wp-config-sample.php with a text editor like WordPad or similar and fill in your database connection details”

I am being hosted by a friend who is letting me use a sub-domain and he gave me webspace also. I logged into the ftp with the information he gave me and tried uploading everything. It says error on line 9 in the wp-config.php. Now what my main question is what do I put into the database connection information? Do I use my wordpress login details or my ftp information?Here is the information it tells me to change, but I am confused on. PLEASE HELP! THank you in advance!

“define(‘DB_NAME’, ‘wordpress’); // The name of the database
define(‘DB_USER’, ”); // Your MySQL username
define(‘DB_PASSWORD’, ‘ ‘); // …and password
define(‘DB_HOST’, ‘local host’); // 99% chance you won’t need to change this value”