I just used double pointed needles and worked around making ribs at the beginning, then just knit... until, wearing the hat, the two flat sides (front and back) touched each other. Then I just sewed the top with the same wool... and voila.
I don't know if my explanations are clear. Basically, it's just like two rectangles sewn together leaving one side open. That's the idea.
I tried to follow the other pattern, too. In fact, I have a kitty hat without kitty ears But I find this pattern much easier and quick and -most important- I can do it easily with any kind of yarn and matching needles
I think I'm alittle confused as to how you made the ears...