I saw many many shows on difrent Channels about it, one thing is They say that this Person in the Vatican would help get the new Passports and new names, They would then go to the area around Syria, then they could go to South America, Mostly Argentina since it was a major fan of Nazism at that time.
Another thing is many nazi's went to America and Russia after the War and helped them build some of thier new weapons at that time and gave away German secrets.
Also here is something interesting, Apperently only 1 High Ranking Nazi official is still alive, they think he is in Syria.