Nope, TestDirector is not available as a demo. I suggest you find a Mercury customer near you by asking Mercury or its re-seller for references and go visit them to see how they use it. Plus the Vendors will be glad to come to you and give you a demonstration of its use, just ask them. If your company plans on buying it, then they should not mind spending some resources to verify that it is the right tool to purchase.
Success is the ability to go from one failure to another with no loss of enthusiasm.
~ Winston Churchill ~