Oh, good--I was looking particularly for the "cheese" update!
If you can get hold of "live" kefir grains (I said "kernels" in my last post, but they're referred to as "grains"), there's hardly any recipe at all. They're not easy to come by, though...I got mine from a friend, who got hers from another friend, etc. The grains are alive and they reproduce like crazy, so if you CAN find someone who has them, get some! It's kind of like sourdough starter in that respect.
Here's how easy it is: You put the kefir grains into a gallon of milk. Leave the container out at room temperature for 24 hours. BINGO. You're done. You have kefir. Pour the thick (buttermilk consistency) liquid into another container, straining out the kefir grains, and refrigerate the kefir. The grains will have grown! Store the live grains (they look kind of like small-curd cottage cheese, or that hydroponic gel stuff) in a sealed container in the refrigerator. If you're not regularly using them to make kefir, and discarding or sharing the excess grains, you must feed them every so often to keep them alive. I THINK you can also freeze them to halt growth.
I first learned about kefir 10 or 12 years ago when I started feeding my dogs the Volhard Natural Diet. I've also made it with a powdered starter, which required heating the milk to a certain temperature (not too hot), then letting it rest before adding the starter. The grains are a LOT easier!