Toolbar Options

I am running Windows 2000 v5, SP4.

In IE when I click on View | Toolbars six options are displayed. Two are for software no longer on my machine. How can I delete them from the list of toolbars available for screen display?

In Explorer when I click on View | Toolbars and check Search bar a Search bar appears on the screen displaying websites of no interest to me. How can I change the links displayed on the Search toolbar in Windows Explorer? Also, when I select the Links toolbar option, nothing is displayed. How can I control the options available on the Links toolbar in Windows Explorer?