Select the Cross-reference button in the Captions group. A Cross-reference dialog box will open. Click the type of item you want to reference in the Reference type list within the dialog box. If you ...

The run's going well, until the truck starts overheating and you see clouds of white smoke coming from the radiator. You safely pull over and turn off the engine. “Just what I need today,” you say to ...

Frankly, cross-references are a disappointment in OpenOffice.org Writer. Several posters to the OpenOffice.org mailing lists have referred to them as glorified bookmarks, and they're not far off.