I am in US Central Time and got the patch but it's causing a system freeze every time I try to go into VATS. Very frustrating! (I've installed to the HD, I'm in Nipton.)
Most of the people that have this problem always seem to be in Nipton. Remove the patch by clearing the system cache, load up the game and travel to a different location, create a fresh save there, then download the patch again. I've seen this work for someone else.
Alternatively this may also fix it, as it did for Grassman, another poster, that you can refer to in the following thread:
"I had a similar issue, but resolved it by reloading my file, switching guns, hip firing, switching again then trying vats. It cleaned it right up. My issue WAS My xbox would freeze, then my character randomly die if I waited long enough (usually 10 mins). now everything works great. "
http://www.gamesas.com/index.php?/topic/1125797-update-causes-repeatable-vats-crash/