The mfr. discontinued this printer in 2008. Samsung offers no drivers period (for any OS) for this model, they only offer a user manual:
It being a laser printer, I'd be tempted to try some of the laser printer drivers Microsoft packaged with the OS, ie: HP Laserjet IIp, IIIp, etc. No driver disk is required for this action. The driver(s) reside on the hard drive by default when Windows Vista is installed (in compressed format). The Add New Printer wizard
will automatically find and un-compress the driver for whatever model you choose in the list. 1st. check to see if there's a Samsung SG-560 listed.... if not, then test with the ones listed above.
Or you can contact Samsung directly and inquire about driver availability.
Note: I don't know if the SF-560R is a different printer but you might want to read the info posted by a user.