OpenOffice.org doesn”t natively support the SVG graphics format, which can be an inconvenience, especially considering how many good vector-based images are available in the Open Clip Art Library.
The SVG Import filter adds support for the SVG format, so you can easily open vector-based graphics directly in OpenOffice.org. According to the author, the filter produces nearly perfect results for simple SVG files, though there are still some issues with color and transparency gradients.
When downloading the SVG Import Filter, you might want to take a look at the svg2office batch-processing utility, which can convert multiple SVG files into the OpenOffice.org native graphics format (odg).
UPDATED: A step-by-step how to add the files to your clipart library can be found here.