FreeBSD 7.x family and MySQL 5.0.x family EOL (not supporting).
FreeBSD update:
# freebsd-update upgrade -r 9.2-RELEASE
# freebsd-update install
# reboot
MySQL Installation:
# cd /usr/ports/databases/mysql56-client ; make install clean
# cd /usr/ports/databases/mysql56-server ; make install clean
# echo 'mysql_enable="YES"' >> /etc/rc.conf
# /usr/local/etc/rc.d/mysql-server onestart
# mysql
mysql> GRANT ALL PRIVILEGES ON *.* TO 'mt2'@'localhost' IDENTIFIED BY 'mt2!@#' WITH GRANT OPTION;
mysql> GRANT ALL PRIVILEGES ON *.* TO 'username'@'%' IDENTIFIED BY 'password' WITH GRANT OPTION;
mysql> flush privileges;
mysql> quit
# /usr/local/etc/rc.d/mysql-server onerestart