Red flags I see:
Breeding outside the standard with designer dogs (aka maltipoos)
selling puppies at 8 weeks old
CKC papers (which means virtually nothing)
The sheer number of puppy pictures on their site is amazing! If they are selling that many puppies you can be sure its a backyard breeder or worse.
I would not give this greeder another thought, if you are really interested in a maltese, there are MANY reputable breeders out there that have HEALTHY well-bred puppies. Also there are a lot of rescue malts out there that need loving homes and are just as cute and loving as their pedigreed bretheren.