Use the WizardPage(String pageName, String title, ImageDescriptor titleImage)
constructor to specify a title for each page. Or call WizardPage.setTitle(xxx)
whenever you want to change the title.
The current wizard page title overrides the normal dialog title (even if it is not set).
Update:
For the title in the dialog tile bar use the WizardDialog.setWindowTitle
call (usually in the constructor).