Here is a link (hopefully) that craftybear posted, great step by step pictures and explanation.
http://comfortstitching.typepad.co.u...g-binding.html
If the link doesn't work, you might have to copy and paste it into your browser bar.
Good luck, binding isn't that difficult and gives such a nice finishing touch. This is a straight binding, not around curved edges. For that you would need a bias binding tutorial and there is one on this board under tutorials.