demod -a

The driver should have come with an installer script, that copies the
module to the correct directory your runtime kernel is using for
modules.  If the driver download is nothing but a .ko file, do you
know what kernel it was complied for?  try sticking it in
/lib/modules/$YOUR_KERNEL_VERSION/extra and then do a depmod -a to
update the modules list, and lastly a modprobe to load your module.