By default a Word TOC field generates a Table of Contents from paragraphs formatted in the Heading 1, Heading 2 & Heading 3 Styles. If whatever you want to list in your Table of Contents has any of those Styles applied (do be consistent about which ones you use for different things), simply clicking in the Table of Contents and pressing F9 should be sufficient to update it - as will doing a Print Preview.

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Cheers,
Paul Edstein
[Fmr MS MVP - Word]