First off, stop blaming yourself. The only thing that you did wrong was to trust that your bank was giving you accurate information.
What we did was to write up a detailed story of what happened to us, which you can read at
http://www.scamvictimsunited.com/our_story.htm
I then sent it to every TV news show, newspaper, radio station and magazine that I could.
I also sent it to the resources listed at scamvictimsunited.com/resources_cashier's_check.htm
I will not lie to you, it was not easy. I spent every minute of every day for weeks calling, emailing and contacting anyone who would listen to us. Every time I spoke with the bank, I documented everything, and I would also let them know that "it would be nice to have this resolved by X date, since that is when we had our next interview or press conference schedules. If things were resolved I would be able to mention how helpful they have been through this ordeal" I still think that the fact that I made a lot of "noise" really helped.