The latest Fallout 1 and Fallout 2 pack they sell in stores have both games already patched. I bought the pack because my original cds got scratched thanks to retards who borrowed it. There might be a way if someone emailed me their .exe and some folders of their 1.0 version.
When you use a mod management program (FaME), there's a possibility to turn off the patch usage. Patch00somethingorother.dat is treated like a mod file and you can just switch it off.