Access Denied

[azlatin2000]

I keep getting this error when i try to connect to my database:
Warning: mysql_connect(): Access denied for user: 'username@localhost' (Using password: YES) in d:\website\DataBaseSetup.php on line 2

[MikeParent]

Welcome to the hellish world that is remote mySQL administration.
Do you have any way to look at the system tables? You will need to add a records to the db and user tables to give yourself access.

mysql> GRANT ALL PRIVILEGES ON *.* TO username@"%"
IDENTIFIED BY 'password' WITH GRANT OPTION;

[azlatin2000]

I'm making a site 4 someone else and he is not on aim any more i will tell him tomorow.

Also is there anyway to add colums to a table after using the CREATE TABLE TBLNAME(asd number(5));

Like if i have a table with the colums "a" and "b" can i later add a colmumn called "c"?