According to some people the APA style provided by Microsoft in Word 2007 is incorrect when it comes to spacing between journal names, volumes and issues. This release addresses this issue.
To use the style, copy the XSL file into the Word 2007 bibliography style directory. This directory can vary depending on where Word is installed:
On most machines this will be:
%program files%\Microsoft Office\Office12\Bibliography\Style
Once the style is copied to the directory, it will show up every time Word 2007 is opened. It will be labeled as "APA without space".