Multiple copies of Views filter form (exposed filters)
This hack works very well but there's no need for a hack if you have seperate displays from your view. My search results were displayed as a "Page" display and you also have the "Default" display. 

On the page you would click "Exposed form in a block" then click "Override" on the right hand side. Set this to "No" (so the form now displays on the search page). In the "Default" display, have "Exposed form in a block" set to "Yes" - so by default it produces a block, but you also get the form to appear on the search page as well.

Thanks guys,
Garry.