Some of Word's Galleries are Missing

A new feature in Microsoft Word 2007 is the Building Block Gallery. There is a content control with a drop-down list of galleries, but Microsoft says that not all the galleries are displayed. Some of the ones that aren't are the Bibliography, Watermark, and Cover Page galleries. At http://support.microsoft.com/kb/930201 they say this behavior is by design, but they don't say anything about how to see the missing ones.