It is beneficial for Office 2007 users to update to the new SP2 release to enjoy functional improvements. They should keep in mind that the service pack is fairly large (up to 290mb)
Office 2007 SP2 released
http://www.microsoft.com/downloads/details.aspx?FamilyId=B444BF18-79EA-46C6-8A81-9DB49B4AB6E5&displaylang=en
KB953195 Office 2007 SP2 - product-specific changes described
http://support.microsoft.com/default.aspx/kb/953195
QUOTE: The 2007 Microsoft Office Suite Service Pack 2 (SP2) provides customers with the latest updates to the 2007 Office suite (the products that are affected by this update are listed below). This download includes:
* Previously unreleased fixes that were made specifically for this service pack.
* In addition to general product fixes, this includes improvements in stability, performance, and security.
* All of the Public Updates, Security Updates, Cumulative Updates, and Hotfixes released through February 2009.