[support] url alias not working?

hi i am trying to make this url (which is linked in a lot of places) www.freedom-center.org/radio go to this url on our drupal install www.freedom-center.org/section/radio i tried to do this under set url aliases here: Existing system path: http://freedom-center.org/section/radio Specify the existing path you wish to alias. For example: node/28, forum/1, taxonomy/term/1+2. http://freedom-center.org/radio Specify an alternative path by which this data can be accessed. For example, type "about" when writing an about page. Use a relative path and don't add a trailing slash or the URL alias won't work. but it doesn't seem to work? thanks for help -- will