Parental Control no longer blocks sites

Hi, just updated to 16.2.0.7 my NIS 2009 and the flashing ads I blocked earlier thru parental control setting are no longer blocked. In the history the last record is the one prior to the update. Do I have to re-install the add-on?

thanks

xp, nis2009, browsers: netscape 7.2 and navigator 9 (I blocked internet access to IE )