Convert a 32 bit windows driver to 64 bit. Is it possible?

Not possible, for so many reasons. At the very least it requires a re-compile, for which you'll need the driver source code (which I'm guessing Frontech has not made public). And it'll likely require a lot of other changes as well. Driver ports are rarely trivial.

You need that 64-bit driver, or it won't work. From Microsoft FAQ on 32-bit and 64-bit

If I'm running a 64-bit version of Windows, do I need 64-bit drivers for my devices?

Yes, all hardware devices need 64-bit drivers to work on a 64-bit version of Windows. Drivers designed for 32-bit versions of Windows won't work on computers running 64-bit versions of Windows.

If you are unsure whether there is a 64-bit driver available for your device, see Update a driver for hardware that isn't working properly or go to the device manufacturer's website.

You can also go online to the Windows Vista Compatibility Center, or get information about drivers by going to the Windows Vista Upgrade Advisor website.