Bet you didn't know that Sharepoint 2007 doesn't index Office 2007 documents did you? Well, there is a bug that prevents indexing of the latest Microsoft Office documents. See here if you don't believe me!

 

Finally a solutions is available - Microsoft Filter Pack. The details about installing it on Windows Sharepoint Services 2007 are located here.

 

Finally, we can index Office 2007 documents!