Loook searches for text strings in OpenOffice.org (and StarOffice 6.0 or later) files. AND, OR, and phrase searches are supported. It doesn't create an index, but searching should be fast enough, unless you have very many files.
Information regarding Project Releases and Project Resources. Note that the information here is a quote from Freecode.com page, and the downloads themselves may not be hosted on OSDN.
This release adds support for the news file formats of OpenOffice.org 2.x, sort results by file name, and makes saving the configuration more robust for path names that contain special characters.