Microsoft's latest update for Office 2004 for Mac, Microsoft Office 2004 11.5.7, addresses a handful of significant security vulnerabilities surrounding specially crafted Office files that could enable an attacker to view, change, or delete data by executing remote code. The update addresses those issues by altering the way files are opened and parsed. It is rated Important for Microsoft Office 2004 for Mac and requires that you've previously installed the Microsoft Office 2004 for Mac 11.5.6 Update. The update is available from Microsoft's Web site and via the Office 2004 version of Microsoft AutoUpdate. (Free, 9.4 MB)
Edit iCal Event Titles Directly
In the Leopard version of iCal, double-clicking an event shows a summary of the event, and to edit the name (or anything else), you must click the Edit button in the summary pop-up. To bypass the summary and edit pop-ups entirely, Option-double-click the event name. That selects the text for editing, and you can make any changes you want. Click outside the event to save your changes.
Microsoft Office 2004 11.5.7
Set up short abbreviations which expand to larger bits of text,
such as “Tx” for “TextExpander”. With the new custom keyboard,
you can expand abbreviations in any app, including Safari and
Realistically, your exposure is pretty low, so I wouldn't stress about this too much, and would recommend just being a little more cautious about opening files from dubious sources.