Just out of curiosity, what are you doing with a new boyfriend when the ghost of your ex-boyfriend still hovers around you?
I understand that you're "pretty much over it," but I certainly don't think it's fair to your current boyfriend that you've got half your mind focused his way and the other half focused on your evil ex. You are right that it is going to keep you from being the kind of girlfriend he wants and deserves, and I think you'd do best to take care of one thing at a time.
As for your options right now, there are really only two that I can see. You can call it off temporarily with your current boyfriend and try to find this "closure" that you're after with your ex...or you can give up completely on talking to your ex, let him live his own life while you live yours, and devote all that free time to your current boyfriend.
The choice is yours to make, but please don't lose sight of the fact that you've got a boyfriend in the mix right now. He's wound up being involved in this mess through no fault of his own, and it's very important that you keep that in mind while you're busy sorting things out with your ex. Good luck!
BruinDan, "Number Three," PHOM
Beware the naked man who offereth you his pants.