WordPress database error upon upgrading from 2.2 to 2.3.1

I upgraded and now I get this message below my posting panel in the Write New Post page:

WordPress database error: [Table ‘drew3000_wrdp1.wp_post2cat’ doesn’t exist]
SELECT cat_ID AS ID, MAX(post_modified) AS last_mod FROM wp_posts p LEFT JOIN wp_post2cat pc ON p.ID = pc.post_id LEFT JOIN wp_categories c ON pc.category_id = c.cat_ID WHERE post_status = ‘publish’ GROUP BY cat_ID