There are a number of avenues where you can get help with Blackboard;
This is a blackboard site that shows all sorts of tutorials and guides and also has an extensive amount of resources:
https://help.blackboard.com/Web_Community_Manager
https://cerc.blackboard.com/training
There is also the "How Do I ..." tab in your site manager. This is context-specific help that is searchable. You can also find comprehensive documentation in their "Guides".