Dear mhob,
At the present it is not possible to use the scanner in question under
Vista 64, because (as you might know) the manufacturer discontinued the scanner production as well as any new software/drivers
update. Without any compatible driver the task of communicating with the scanner is not feasible.
Most likely
Minolta might not produce any compatible driver for your operating system which would allow a reasonable control of the scanner.
Should this situation change in the future we will announce it on our newsletter.
An apology for any inconvenience and thanks for your understanding.