windows updates

I have re-installed windows xp pro installed the antivirus and office 2003. every time I click on the update icon within the programs menu all i get after..

Checking if your computer has the latest version of Windows updating software for use with the website? is

The website has encountered a problem and cannot display the page you are trying to view. The options provided below might help you solve the problem. I have not been able to update the machine after 2 rebuilds. please help has anyone else had these probs and how did you solve them. THX