NVivo

I'm trying to learn to use NVivo. I use the tutorials at http://www.sagepub.co.uk/richards/ . It's not easy to comprehend. I can follow the tasks and actions. But I'm not really sure what they mean. More important, I'm not sure how I am suppose to use it for my research. I guess, when I have my own data, and more exposure to qualitative research, then I can understand it.

If anyone has knowledge and skills of using Nvivo, please contact me. Thank you in advance.