My LibreOffice installation has a Printer Administration program which did not work.
The executable script is /usr/bin/libreoffice3.4-printeradmin which has one line invoking program spadmin.
The path to this is given as /opt/libreoffice3.4/program/spadmin but the actual file resides in /usr/lib/libreoffice3.4/program/spadmin. Once this is corrected the the Printer Adminstration was launched without any problems.
Hope this helps.