This is exactly why I don't want to mess around with anything in the G.E.C.K. yet. Who knows what they are going to change to fix all these problems. Funny thing is that my game ran flawless before any patch was out and it started crashing after I updated. I don't even want to turn my game on now to see what happens after this patch.
I'm guessing when they release the big patch there will also be a note saying that you should start your game over.
That' why you always make backups of your fallout new vegas folder, save folder, etc. Backups, backups, and even more backups! I just replaced the Fallout NV.exe that was installed with the current patch with the backup FalloutNV.exe that I made before I downloaded the new patch. Now I am playing again just fine till they fix the damn patch.