Office 2008 for Mac 12.0.1 Update
The Office 2008 for Mac 12.0.1 Update contains several changes that improve security, stability, and performance. These changes include fixes for users of Mac OS X 10.5 Leopard, and include fixes for vulnerabilities that an attacker can use to overwrite the contents of a computer’s memory by using malicious code.
NOTE: For Mac OS X 10.2.8 (Jaguar) or a later.
Most Recent Update 
Microsoft Office 2008 for Mac 12.0.1 Update
This update fixes critical issues in Office 2008, including issues that might cause Office 2008 applications to stop responding or quit unexpectedly.
Released: Tuesday, March 11, 2008
.dmg file size: 114mb
56k modem: 9hrs 56min
 Description of the Office 2008 for Mac 12.0.1 Update (2008-Mar-11) [MS]
 Office for Mac – Easy Access to Downloads and Updates (2008-Mar-11) [MS]