For a week or so when I go to update at any time I get the 'sorry, server busy and not ready to update' message. I used ewido for years and never got this. mI've clean reinstalled too. Any one else get this?
Make sure that all other programs are closed before doing the update. When I've had this problem, I've usually found that it works once I close Thunderbird. My wife's had a similar experience with Outlook Express. It could be coincidence, but it's happened several times.