Calling a method in a tab from the main window.

I came into this project and I don't fully understand why I can't do what I want to do.
The previous writer creates a main GUI that looks like a normal Windows Application with the menus and things. Then inside he has tabs to navigate to the various parts of the program where the user can input data and receive results. This I understand. He begins the program by using a starter to create a new MainGUI calling it MainGUI. My problem is now that I am working on the tab and want to call one of MainGUI's get methods, I can't. I can call from another tab. EX: SitePropPanel.getOpenYear() where SitePropPanel is another tab that is created in the MainGUI. When I try to use MainGUI.getData() it just says _MainGUI cannot be resolved.

In case it is not clear, In the tab, I want to I want to be able to call a getter method that exists in the MainGUI. I thought I could do this by saying
MainGUI.getData(); I used MainGUI because that is name the previous programmer gave to the instance of the class, MainGUI, in the Starter class.

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Message was edited by: Jeremy Roberts

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Edited by: okun on May 16, 2010 8:40 PM
Edited by: okun on May 16, 2010 8:41 PM
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