Reporting - Who is currently assigned to the workflow.

I am trying to create a self-service report that shows who is current assigned to each CN (ECN) and what state each CN is currently in.  I have admin privileges, but I am new to the self-service reporting feature.  I also have access to the aftermarket "InnovatorAdmin" app if someone has AML script that would give me this same information. 

CN Number Assigned To CN State Activity
CN-004589 Bob Smith In Change Final Update

Thank you!