Office 2007 SP2 now available
The Office 2007 SP2 is now available. If you’ve been dissatisfied with Outlook performance and behaviour, this service pack should solve many of these problems.
Taken from KB article 953195 describing the changes:
Microsoft Office Outlook For more information about these improvements and details about other Outlook fixes, click the following article number to view the article in the Microsoft Knowledge Base:
968774 (http://support.microsoft.com/kb/968774/ ) Outlook 2007 improvements in the 2007 Microsoft Office suite Service Pack 2
The recommended update process is thru Windows Update but you can download the SP directly:
List of all the SP2 downloads: