there is no frozen ATP in the USA.you have an ATP or you don't have an ATP.
and by the way what is "frozen ATP?" is it a new ice cream from Nestle or the JAR-FCL...
what you can do, is to pass the atp written test in the States and say you have a frozen.It will take you 2 weeks for that.Turkish airline will hire you on the ATR if you have your FAA cpl, ifr and your ATP written.