If the kitten doesn't have fleas and is able to clean itself, I wouldn't give it a bath. If you need to clean it, take a wet washcloth and wipe the kitty clean that way. I would think that such a young kitten would run the risk of catching a cold if it were bathed.

I'm no expert, so this is just based on my own experience. My cat, Bentley, fell in the toilet (he's a clutz!) when he was 8 weeks old and ended up getting sick and dehydrated. I'd say it's just not worth the risk. Cats are great at keeping themselves clean. That's why they're the best pets! (IMHO)