I think you won't be able to get the FingerWorks software to run normally from within the new Mac OS version because the software relies on a version of Java that is no longer supported by the newer OS'es.
But there's a solution! (I think.) Look at this thread to see how to set up a virtual computer running on your actual computer -- and you can install an older OS on that which does support the old FingerWorks software. viewtopic.php?f=23&t=2861
Running a virtual machine works on any OS, and you can load any OS onto that virtual machine that you want so it doesn't have to be an old Windows XP (which you might not have) but you could also load an old version of Mac OS instead.