Transferred an MU site from 1 host to another and now have HUGE problems...

Hi,

We moved a WordPress MU Site from a VPS to Amazon ec2.

The site is http://idwellness.org/ We are noticing many problems such as avatar uploads not functioning as well as many things are broken (buddybar has dissapeared unless on an admin page)

We are stumped. Any ideas people?

[Wed Nov 11 14:52:39 2009] [error] [client 65.55.207.95] WordPress database error Unknown column 'hide_sitewide' in 'where clause' for query SELECT count(id) FROM wp_bp_activity_user_activity_cached WHERE hide_sitewide = 0  ORDER BY date_recorded DESC LIMIT 12 made by get_sitewide_activity

Found this in the error logs. Any ideas?

Thanks!