I believe the USA Drivers are at the Global Link. Just make sure you highlight USA on the Global Download page (seems like that option was on the lower left-hand side of the page when I went there to create the link. I think some of my problems were related to having downloaded inappropriate version(s) of the drivers, then kept attempting to repair them instead of the delete/reboot/re-install.
Update: Correction - I believe I already had selected (drilled down to) USA on the Global Downloads page, so the link should be for the USA Drivers in post #10 (which is why I put the USA notation in parentheses when I created the link). This should be what you are wanting for USA device.