Oh, don't apologize for asking questions! Yes, 8-10 weeks should be old enough for her to be weaned and away from her mum. Every day that goes by increases her likelihood of surviving. I would not give her cow's milk, and once she is weaned, she won't need cat's milk, either. Just good kitten food - it is fattier and has more of the stuff a growing kitty needs - and she'll be fine.

You can teach her to use a scratching post, just get one, and show her how it is done, and she'll likely come to enjoy it. If it helps, you can rub it with catnip, but kittens don't usually react to catnip until they are older.