After you finish the Leopard compatibility update, I propose the following improvement:
Change the "Power Find Browser" to a "sheet" or "drawer" attached to the Find dialog. It should extend down from the Find dialog, not horizontally, to best fit on the screen. Preferably, its open/closed state should be preserved when the Find dialog is closed and reopened.
The current implementation as a Modal window is obnoxious, especially since there is no way to assign a keystroke to open and close it. It is pointless for the Power Find Browser to remain open after the user closes the Find dialog.