Traditional or Red cambodian is when the body is very pale cream or white (we call it platinum if the eyes are blue, and dilute if the eyes are black or brown) and the fins are red. Blue cambodian is platinum or dilute body with solid blue fins. Cambodians have been crossed with other colours to create the white body with another colour fins, but these types aren't 'set' - that is, they don't breed true.
Salamander has a pale pink or lavender body which shines blue (pearly iridescent) in the right light. A lot of the time the area between the rays in the tail is also pale blue and iridescent. So the fish in the photo on the first post is a salamander.