I concur. I like to use CBT to help myself to stop beating myself up, worrying about what others think etc. However, I also like to get at unresolved issues. I had some unresolved issues in childhood. I also have some at work. I think working on changing the behavior has helped me to not add more unresolved issues but I have spent more time in session trying to resolve the unfinished stuff. What good is helping oneself not to make one's life worse if you don't work on rectifying the mistakes, unfinished business etc too?
I am not sure what my T is trained in. I have read on psychoanalysis/psychodynamic which focus a lot on past experiences. I suspect that my T has had training in this because she is perfectly comfortable with the transferance in our relationship. I have wrote letters to people (just for therepuetic purposes) as a way to fully express my feelings about past childhood issues, the death of my great aunt and grandma. I think that might be more of a Gestalt technique. I am planning on writing letters about work as a way to work through my anger concerning past issues at work. The current manager didn't have anything to do with these past issues yet I still feel them whenever something happens at work that bothers me. I hope you find a way to augment CBT with other ways to work through whatever issues that you may have.