How do you take care of baby salamanders?

There are many websites devoted to the care and housing of captive salamaders, so I am going to assume that by "raise" you mean breeding. Breeding of captive salamanders is not an easy thing. While difficult and somewhat expensive, it can be acheived by very detailed and minute changes in the temperature, lighting, humidity after they have been forced into a hibernation period. More info can be found here: http://www.petplace.com/reptiles/breeding-your-reptile/page1.aspx