Boot up the old kernel. Copy the driver file from old kernel module directory to the new kernel module directory.
But the this driver may have to be compiled against the new kernel like other kernel modules.
Only if there was a change in kernel structures,api at which point it is forget it. The thing is a binary driver that was supplied on a floppy during installation. No compilation involved and I doubt there ever will be unless the vendor supplies a half open source driver/full open source driver.