Install can't continue when processing the mysql database update ....

Hi ,guys .
I am new to opencart ,installation stop @ update mysql database ..is there same situation happened before
error code :

You have an error in your SQL syntax. Check the manual that corresponds to your MySQL server version for the right syntax to use near 'collate utf8_unicode_ci default NULL, `firstname` varchar(32

OS : Centos-4.6,Apache-2.0.53,Mysql-5.0.55,PHP-5.2.3,opencart-v7.8