She is going to move to another country where they differ from the Sunnis
Question

                I was curious as to the distinction of Sunni Muslims.  How does this sect of Islam differ form the mainstream practicies?  I am about to move to Uzbekistan for two years where this is the predominate faith and  I would like to know more about it.
Praise be to Allah.The Prophet  
          (peace and blessings of Allaah be upon him) said: “The Jews split into 
          seventy one sects, and the Christians split into seventy two sects. 
          This ummah (nation) will split into seventy three sects, all of whom 
          will be in the Fire apart from one.” It was said, “Who are they, O Messenger 
          of Allaah?” He said, “Those who follow the same path as I and my companions 
          follow.” So whoever follows the same path as the Prophet and his companions 
          is following the truth and is safe from all falsehood. The basis of 
          this truth is the Qur’aan and the Sunnah of the Prophet  
          (peace and blessings of Allaah be upon him). He  
          (peace and blessings of Allaah be upon him) said: “I am leaving among 
          you two things, which if you adhere to them you will not go astray after 
          I am gone: the Book of Allaah and my Sunnah.” Whatever goes against 
          them is a deviation from the truth. The Sunnis (Ahl al-Sunnah wa’l-Jamaa’ah) 
          are those who follow the truth, who honour Allaah and His Messenger, 
          who follow what is said in the Qu’raan and Sunnah, and follow the righteous 
          predecessors, the Sahaabah and Taabi’een (the companions of the Prophet 
          and the subsequent generation) and those who followed them in truth; 
          they do not go beyond their guidance or differ from their way, because 
          they are the most knowledgeable of people about the Qur’aan and Sunnah, 
          which came in their language and in their Arabic idiom. Allaah says 
          (interpretation of the meaning): 
“An Arabic Qur’aan, without 
          any crookedness (therein)…” 
[al-Zumar 39:28] 
Truth lies in following them, and their way is guidance, 
          because they followed what was brought by the Qur’aan and Sunnah; whoever 
          does anything that is contrary to that will have it rejected.