defamation of character

I hope I am posting this in the right spot. I would like to have some feedback on a recent problem I have encountered in my 3 year long, nursing career. About 2 weeks ago, I sent an email to my boss informing her that I would be putting in for a transfer to a differant unit. I have been an ICU nurse for the past 3 years and am wanting to work with babies. I was told by several of my peers that I should wait until after my evaluation before I put in for this transfer. Time was an issue because I did not want to lose this position, so I gave my notice via email as our hospital policy dictates. The previous day, my assistant manager reviewed my evaluation with me one-on-one in her office, behind closed doors. She had informed me that my evaluation would be the same as the previous year which was fine with me. It was above average and I received a 95cent raise. The following day, my evaluation was not online for me to check and approve, so I decided to give my notice to leave my current position and go else where. One week later,which was yesterday, my evaluation was there. I was nervous because what my peers had told me about my boss doing mean and devious things if you leave her unit, I was reluctanct to open and review my evaluation. The story by my assistant director was our director was at home sick due to a recent surgery. I had a close friend of mine look at my evaluation and tell me what she thought. She read my evaluation and said " I can't believe what they wrote". I read it at that time and my evaluation looked so horrible, I counldn't finish reading it. I declined it in writing, stating it was an "unacceptable evaluation" and I refused it. The eval said that I continuously complain about my assignments, I don't help out, I can only handle the moderate ICU pts, I close the door if working with an ICU pt and the list goes on and on until I quit reading it. There were approximately 7 other staff there that all said what a bunch of BS and "how can she do that". I have never over my last 3 years working for the same 2 people been given a verbal or written reprimand. I have never been confronted on my attitude or behavior about having any of this problems listed in my evaluation. I found out later that my nursing director has done this to several other RN's who left her unit. I know this is kind of long and drawn out thread, but can anyone give me input on where to go from here. I have exceptional support from my co-workers who told me they would all give my a great references, but this information is a "defamation of my character" , is so undeserving and I do not want this information viewed by anyone else. PLEASE HELP....