I just spent a few hours on this and finally got it to work by manually creating the [prefix]_bb_posts table with the SQL from jdpark7. But, the single-quotes in the statement had to be re-typed to get it to work. Note, my db prefix is wp1_:
CREATE TABLE IF NOT EXISTS wp1_bb_posts (
post_id bigint(20) NOT NULL auto_increment,
forum_id int(10) NOT NULL default 1,
topic_id bigint(20) NOT NULL default 1,
poster_id int(10) NOT NULL default 0,
post_text text NOT NULL,
post_time datetime NOT NULL default ‘0000-00-00 00:00:00’,
poster_ip varchar(15) NOT NULL default ”,
post_status tinyint(1) NOT NULL default 0,
post_position bigint(20) NOT NULL default 0,
PRIMARY KEY (post_id),
KEY topic_time (topic_id, post_time),
KEY poster_time (poster_id, post_time),
KEY post_time (post_time),
FULLTEXT KEY post_text (post_text)
) ENGINE = MYISAM DEFAULT CHARACTER SET ‘utf8’;