I haven't any idea where you got any 32 bit uninstaller or software or what's going on. I posted the 64 bit link.
If you downloaded, extracted, then copied the file I mentioned to overwrite the original in the driver folder, that's all good and fine now.
CHeck the driver date in the device manager under network adapters section. Look at NVIDIA properties then driver tab. If it is 2009 or 2010, it's good. (Make sure you have rebooted already before checking.)
How has the machine been lately? Any crashes?