Ok so just to clarify before i try, this is my info:

database name: hhd_ddforum
User name: hhd_ddforum
Sql file name: mysql-ddforum.sql
Sql file path: /home/hhd/hiphopdownloadz.com/mysql-ddforum.sql

Is this right?
Code: 
mysql -u hhd_ddforum -p hhd_ddforum < /home/hhd/hiphopdownloadz.com/mysql-ddforum.sql
& is there a space between "u hhd_ddforum"

mysql -uhhd_ddforum -p hhd_ddforum < /home/hhd/hiphopdownloadz.com/mysql-ddforum.sql