You can certainly bath them as puppies but I wouldnt before 12 weeks. Petsmart does puppy packages...up to age 6 months...$14.99 I believe, but you can get good puppy shampoo and do it yourself as well...
Also I used puppy wipes on Gracie the first 3 weeks I had her..and she was 9 weeks when I got her...which is too young for a bath and they need to be comfortable in their environment first too.