Click on the link below, then select the "Fix It" option.

http://support.microsoft.com/kb/971058

Once you've performed the steps above, then click on the "KB971029" link below, then download the manual install for Vista to your desktop. Once the manual installer of that particular update is on the desktop, double click it and follow the prompts to install the update:

http://support.microsoft.com/kb/971029

Hope this helps.

Grif