here is a link to the acr 
http://www.americancanineregistry.com/default.html
I would not buy from this lady i mean if she was so speacial why is she elling them for so cheap? I think it's a hype to get it started for her. Well if it's just a cross breed between a peke and a yorkie everyone can do it what makes her so speacial? I would contact the ACR and notify them of this and see if this is an accepted breed also if not ask them if they know this breeder and why is she usining there name to sell her dogs?