Let me add that with the changes done to the RNG 8X8 should not work anymore.
Watch your tongue friend. There are still some out there who feel that if you believe in something with all your heart and soul, it will magically become true. And they wouldn't take to kindly to your blasphamy of their sacred 8x8. So in a sense, I suppose 8x8 still works.
On the positive side there are no more "movement based" or "target based" skills.
Seriously, This is a big improvement when working stealth. 8x8 was a joke. I was so happy to hear that it was removed when I returned a few years back.
And to the OP, the "chart" rico posted is still the best method to train by. I used that for all my training, only difference was I set up a treadmill in my house to walk on, just because (for some reason) only half my characters will auto log if they stand still for too long, even when using skills. (Thats why if you see my scribe making recalls, he moves position after every 100 or so scrolls) Also, if you can get your hands on a skill tutor statuette, that will help a lot too. I wasn't able to get myself one until after I had GM'd stealth, but just for the hell of it I started stealth on another char, and used the statue as a guide, it works pretty well, but the results were just about perfectly in line with the method that everyone already uses.