Copied old database over

Hello,

Got myself in to a bind here. I just started a new site and installed WP. My new version is 2.0.1 the old was 1.5.1

I get this error in the post or page creating window of the admincp. Any ideas to clear this up? can I drop a field to clear this?

WordPress database error: [Unknown column ‘post_mime_type’ in ‘field list’]
SELECT ID, post_date, post_title, post_mime_type, guid FROM wp_posts WHERE post_status = ‘attachment’ AND post_parent = ‘-1139728755’ ORDER BY post_date_gmt DESC LIMIT 0, 10

Warning: Cannot modify header information – headers already sent by (output started at /home/imagehos/public_html/pnl/wp-includes/wp-db.php:102) in /home/imagehos/public_html/pnl/wp-admin/inline-uploading.php on line 140

Thanks,
Provider