Hi Dana,
I went through the API documentation and wasn't able to find a method for the interface JobDefinition that directly returns the object "job". This i find odd, because we can select Monitor Related Jobs option from the context menu and check entire job history across different states, so one would assume there should be a direct way to obtain the scheduled job as an object.
Anyway, if the scheduled job is related to the Job Definition, then it should be shown in the related object list in the details, in that case getJobDefinitionRelatedObject() may return the object "job" for the scheduled job.
This is just my assumption.
Thanks
Nanda