It makes sense that you cannot activate that windown through forcing key presses or through the menu since they are both deactivated when a modal window is created. I can't think of any other way to show the Find window.

You may be better off creating your own search tool with a grid, textbox and Search button.

VFP Help:
Modal. No user input (keyboard or mouse) can occur in any other form or in the menu until the modal form is hidden or released. The program must hide or release a modal form (usually in response to some user action) before further user input can occur. Although other forms in your application are disabled when a modal form is displayed, other applications are not.

Matthew J. Price