how to tern off access in word 2003

[mhmarish]

I have a WinXP, Office2003. I would like to know, in Word 2003, how it is possible to turn off accesses to the undesirable submenus. Foe example, Format->BulletsAnd Numbering…->Bulleted->choose window->Customize…->Picture…We need to forbid the execution of Picture… - this window is opened by Insert Picture and allows user to go out to the hard disk or net – we need to forbid the entrance to the hard disk or net from Word2003. We can’t do it through GPO, I found the Picture Bullets command, put it in Format menu, got its id, but the Picture… window is still working. I suppose that there are many of this Insert Picture commands but realized with different names. I want to make the blocking through macros, but I am failing to do that. May be there is any way to block the argument from the list of function’s arguments. Does anyone know?