OpenBarcode fonts
 

I installed these TTF fonts from http://sourceforge.net/projects/openbarcodes/ in the hopes that I could create Code128 barcodes within OpenOffice in Linux (as I can via Win2k), but when I select it as a font nothing changes. The text in the fields just stays the same, although even the SourceForge project itself states that these should work in Linux. Is there something else that I'm missing to get this to work?