There's an updated version of the Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats available. By installing the Compatibility Pack in addition to Microsoft Office 2000, Office XP, or Office 2003, you will be able open, edit, and save files using the file formats new to Word, Excel, and PowerPoint 2007.
This update of the Office Compatibility Pack include the fixes that were provided in the file format updates for Word 2007 and the existing Office Compatibility Pack in May. This KB "Issues that are fixed in the update to the Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats" lists the changes.
The link for the download on Microsoft Download Center has not changed: http://www.microsoft.com/downloads/details.aspx?FamilyID=941b3470-3ae9-4aee-8f43-c6bb74cd1466&displaylang=en.