You will have to go to orchestrator configration URl as shown in the blue screen to add the vCenter and do other initial configurations.
Here are links that will help you
http://www.vmadmin.co.uk/resources/82-vcenter-orchestrator/372-vcenter-orchestrator-vco-5-5-part-1-d...
http://www.vmadmin.co.uk/resources/82-vcenter-orchestrator/373-vcenter-orchestrator-vco-5-5-part-2-c...
Abhilash B
LinkedIn : https://www.linkedin.com/in/abhilashhb/
