For historic reasons, I've arranged some screenshots, that were still on the webserver, here.

Screenshots are sorted from newest to oldest.

Screenshots that were on

Screenshot with PrefBar toolbar items

Screenshot of PrefBar menu

PrefBar configuration window

Title image that was on the homepage for some time

PrefBar 6 The All-In-One Toolbar

Some old screenshots, taken from SeaMonkey

PrefBar toolbar with overflow menu

PrefBar menu items in the menu bar

PrefBar menu items in the menu bar

PrefBar preferences panel - Toolbar editor

PrefBar preferences panel - Options

New item window - Common

New item window - onClick

The very first title image, created by Aaron Anderson

Screenshot of PrefBar in old SeaMonkey Modern theme with some annotations