Is there a way I can run a list of newly entered employees in a given time period?
I have checked the Features list, but couldn't find anything about your inquiry. If you want, you can check the list by yourself using the following URL: http://www.thoughtfulsystems.com/software/scheduling-manager/feature-list/
Secondly, if you are a customer, then I recommend contacting a Sales person. They should give you an overview of the feature you need. It's possible that it is lacking in your version because there are multiple versions of this software available.
Contact sales: http://www.thoughtfulsystems.com/contact-a-salesperson/