Today I ran into a weird customer question.They wanted to change the description on their secondary sites. After some investigation I found a way of doing this without having to reinstall the entire secondary sites. To do this , you must : Stop the SMS executive service. Open the C:\Program Files\SCCM\Inboxes\SiteCtrl.Box\sitectrl.cto file. At the top of the file , you find your sitecode and below that you'll find the site desciption. Change the name and save the file. Restart the SMS Exec service...(read more)

Read the complete post at http://scug.be/blogs/sccm/archive/2009/02/13/sccm-2007-changing-your-name-description-of-your-secondary-sites.aspx