So, let’s get started! You went to the countryside and made some nice looking pictures? You would like to stitch them together to a panorama covering a full sphere? If you don’t know how to shoot pictures in a way that they fit for this purpose, this is not the tutorial for you. I will start right after that step. If you need some help with the basics of panoramic photography, the tutorials on panoguide.com might be helpful for you: http://www.panoguide.com/howto/.
I will try to describe the steps as closely as possible to the workflow above, with the respective interaction you have to do, an overview about what you will get and how it will look after that step