Office Communicator 2007 R2 how to Change the Default Metting Invitation message

Hello, I really need help finding out how can I modify the messages for both the "Schedule a Live Meeting" and "Schedule a Conference Call".  When I click on those adding in Outlook a default message pops up, as far as I can tell those messages are coming from the Office Communications Server Web Components, but I don't know how or where to go to change them. I would like to add more information for our users. I found lots of info about changing links but not the rest of the text. Any assistance would be greatly appreciated it.