How to write/view comments in CustomPress custom post???

I am having a nightmare trying to get comments to show up on the frontend. I have managed to get them enabled in the backend so I could add my own comment if I chose, but even then they don't show up on the frontend pages. I've been Googling around and adding bits of code to functions and my custom post php but nothing is working. Can somebody give me a definitive answer to my problem?
Thanks!