I don't think its available on the market anymore, I remember reading something about the dev pulling it due to some hardware issues he couldn't get around and due to some concerns with the market place itself.
I've been having a hell of a time with this myself. I've tried just about everything I can think of (using linux-swap, task killers, ext-2, ext-3, faster SD cards, etc) and the best I've been able to manage is to do is using Dexter's rom with all of the bug fix updates. Even then the video only plays for few minutes and then the phone hangs up. Pretty much have to pull the battery out and restart.
Driving me absolutely nuts.