closure doesnt mean that he has to be involved. You just need to get over it. Kick him out of your brain.

And it is oh so very true that until you've done that, it's gonna be hard to find someone new..
Co-sign.
I burned some of the things my ex-husband gave me...valentine's and birthday cards, pictures, etc. It helped me a lot, because the fire felt symbolic of my feelings for him. It burned bright for a few minutes, but then it was gone and all that was left was ash. I don't advocate burning large things, though. Small, like notes and pictures. It's a great release.
I also removed as many items that I had that reminded me of him, at the cost of losing a few things I really loved. But I knew if I kept seeing that damn pirate book he bought me for my birthday one year I'd think of him every time, so it needed to go.
Writing in a journal is great, too. I did that a lot as well...I decided to try not to pour out my feelings about my ex to my friends, but instead write it all down. It got it all out, and I had more than a few crying spells while writing, but it helped greatly.
It's hard to get over someone, but it's possible. It just takes time. You just gotta let go. Concentrate on yourself. If you have flaws that you don't like, fix them! My biggest help in getting over my ex was bettering myself. I was suddenly so wrapped up in my own life and the exciting steps I was taking to get closer to who I wanted to be that I didn't have any time to even think of my ex-husband anymore.
...but it also helped that I moved to Texas, and that put about 1600 miles between me and him, and his family. *L*
Don't bother talking to him, and if you can avoid running into him, then do so. My ex-husband tried to call me a few days after I'd kicked him out, and I told him plain and simple that I did not wish to speak to him anymore. He was crying, and I was crying, and it was hard to hang up, but I knew in my heart it was the best thing to do, so I did it. Don't needlessly bring him into your life when you're trying to get him out of it. Phone calls are going to do nothing but bring those hurt feelings back to the surface.