Make Outline Numbering Work
The Problem:
I can't make outline numbering work properly. It used to number only the paragraphs that had a Heading style applied. Now it seems to number paragraphs indiscriminately.
The Solution:
It sounds as though you've applied outline levels to some of the styles in your document that don't need them. Click in one of the paragraphs that shouldn't have a number, choose Format 
Paragraph, and check the selection in the "Outline level" drop-down list on the Indents and Spacing tab of the Paragraph dialog box. If it says anything other than "Body text," modify the style and set the outline level to "Body text."