Michele,Major changes have occurred in the treatment of charts, with dialogs and menu items very different from those in OOo2. I have heavily rewritten this chapter and included new screenshots as needed. My revised version is now in Feedback.
http://oooauthors.org/en/authors/userguide3/impress3/ig3_feedback/0507IG3-SpreadsheetsChartsObjects_JHW_20090110.odt
--Jean
