For those who doesn't have the patch or couldn't find the patch. I uploaded them for you.
[L4D] Update 1.0.0.9
http://www.megaupload.com/?d=PVHITEHR
[L4D] Standalone 1.10M5 Final
http://www.megaupload.com/?d=1YQYUCDS
Enjoy the game! I might upload the game for those who doesn't have it soon (: