You probably weren't suggesting I did, but I didn't install any drivers. I just used the default 'Untangle_811_x64_vmware.ova'.
Verified MD5 of 20FDD73A7323FF07F6B1A49260C25029.
Retrieve from: 'Link'.
Removing the 'vmxnet driver' and replacing it with an 'e1000 emulator' sounds difficult.