Just trying out the Sun Weblog Publisher extension for OpenOffice 3 to see if it works. As you will know, OpenOffice 3 was not included in Ubuntu 8.10 as it was released too late for their release schedule, however it is possible to upgrade using these instructions on Softpedia.
openoffice
By Liam Green-Hughes, 20 December, 2007
So you've had a look at http://extensions.services.openoffice.org/ are found a great extension for OpenOffice that you would like to try. Only problem is that in the version of OpenOffice that we use there is no sign of the "Extensions" entry in the tools menu