Mysql user astbilluser, password error

Warning: mysql_connect() [function.mysql-connect]: Access denied for user 'astbilluser'@'localhost' (using password: YES) in /home/astbill/wwwroot/includes/database.mysql.inc on line 31
Access denied for user 'astbilluser'@'localhost' (using password: YES)

I created the user astbilluser manually but am still getting this error when Apache tries to pull up the page.

Any tips on how to create the user manually and verify it's working would be great. Already googled what I could and didn't seem to fix it :(