I've installed OpenOffice and I see the toolbar in a "new document" but not in one that I open. Also, when I go to Tools, I don't see any option for "add-on". Finally, when I do click on a toolbar item in a new document, I get an error message:
A scripting Framework error occurred while running the Basic script vnd.sun.star.script
dt2html.ExtractG.subExtractWi zard?language=Basic&location=application.
Message: The following Basic script could not be found:
library: 'odt2html'
module: ExtractG'
method:SubExtractWizard'
location: application