in photoshop go to file>automate>photomerge. find the pics you want and let it do it's thing. depending on the computer/file size it may take a while, or it may go fast.
So to shoot a really good panoramic, do you just put your camera on a tripod and shoot all around in a circle (or not all the way 360 degrees, but however far you want to keep rotating)?
It makes me want to get out and experiment....I wonder what will happen if I stand in the centre of a field and go 360? *scratches head*