To change any of the text for a specific page you will go to:
  1. onMessage
  2. Website
  3. Main Site
  4. Pages & Menus
  5. Click the Wrench for the Homepage (or whatever page you want to change the text for)
  6. Select Settings > More Options
  7. Change the Custom Title from whatever it currently is to what it should be.
  8. Click Save & Close
This will need to be done for any page that is displaying the incorrect text on it.