I'm not sure I'm understanding what you mean :} The patch is an archive (zip) with new files that need to replace the old. Everything else needs to be.. well, unrared, unzipped, right there in your main directory.
My suggestion to you at this point would be to uninstall completely (make sure you have no PS folders or files left) and then try reinstalling again, with the patch and the updater. For some reason, trying it again works the second time for many people.