GoogleBox displays but MultiZilla buttons do not display on toolbar

Hello,

I seem to be having a cross-platform problem that I'm not sure is a bug 
or simply me not understanding how to use MultiZilla properly.

I have Mozilla 1.7 installed on my Macintosh (PowerBook G4 with OS 
10.3.4) along with MultiZilla 1.6.4.0b and GoogleBox 1.4

I also have Mozilla 1.6 installed on my Windows XP systems along with 
MultiZilla 1.6.4.0b and GoogleBox 1.4

GoogleBox displays properly on the MultiZilla toolbar, but I cannot 
seem to get any of the buttons in the MultiZilla toolbar to display.  
This problem also occurs on my Windows XP systems.  I have searched 
through all the preferences panes to ensure I have the properly set all 
the options on both the Macintosh and Windows XP computers.

I suspect I'm doing something stupid, but I cannot figure out how I 
have the GoogleBox displayed but none of the standard MultiZilla 
buttons will display.  I have tried changing which buttons are checked 
to be displayed, and I have tried deactivating ChatZilla.  Any 
assistance you could offer to help would be greatly appreciated.

Best regards,

-Jack Grant