Using Calibri and Other Vista Fonts on XP

I've been using Windows Vista for more than a year now and like it a lot. I really like some of the new fonts that come with Vista, including Calibri, the default font for Microsoft Outlook messages. However, from time to time, I need to take a document I've created on my Vista system and use it on an XP system. The problem is that the new Vista fonts don't exist on XP. Fortunately, there's an easy way to install those fonts, as described at http://labnol.blogspot.com/2007/03/download-windows-vista-fonts-legally.html.