As I said, there are no defters showing an ethnic composition. Vlach population in Albania was insignificant. The chronicles of the time mentioning only one town in south Albania of Vlach population. (Moskopolje) . Greeks were dwelling in some few villages. They never composed a whole town. They came as land workers for the Albanian beys. Ali pasha was trying to separate south Albania (tosk) from Turkey. Ottomans killed him for this intention. Greeks during the time of Ali pasha lived as free people. The majority of the orthodox Albanians today don't have any roots to the Vlach population. They are totally ethnic Albanians. Scanderbeg was born as an Albanian orthodox. Orthodox Albanians participated on the Albanian independence same as the others. Some of them are treated as heroes in Albania. Some of the Albanian orthodox patriots were killed by the Greek nationalists.
Fan S Noli, Papa Kristo Negovani, Mihal Grameno, Themistokli Germenji, Petro Nini Luarasi, etc, are heroes in Albania. Those Albanian celebrities, always called themselves "pure Albanian" . Mihal Grameno participated on the killing of a Greek important priest. This priest was plotting against Albania.
In Albania for more decades (in time of Zogu and Hoxha) minorities didn't have rights. They couldn't belonging to their nation, didn't have right of mother language (about schools no question, nothing), even names they had to have Albanian etc. All inhabitants had to be only Albanians. Even today some nations in Albania have no their rights. Armanji (Aromanians) recognized only as cultural minority not national minority.
Armanji (Aromanians) mostly assimilated. We will see in next censuses if they have right of national minority. Arno Tarner in the book of forgotten minorities writes that today Armanji in Albania are about 100,000 - 200,000 (his estimate). Tom Winnifrith speaks about 200,000. They include and Armanji who speak only Albanian. Ali Pasha and other Albanian pashas, begs and fighters, together with Turks, destroyed Armanji population in Albania, and they are known facts. Once, capital of Armanji land, Moskopole had over 50,000 people, and it was one of the greatest cities in the Balkans. Today Voskopoja (Moskopole) is village with population 2,200 people, everyone can see extent of destruction. Armanji in Albania for centuries suffered oppression, and many have assimilated. They mostly saved their faith and today they are Orthodox Albanians.
One text:
http://www.rferl.org/content/article/1097921.html
"By the mid-18th century, Voskopoja had a population of nearly 50,000 and was reputed to be one of the largest towns in the Balkans. But in 1769, the Turks ordered the local Albanian bey [ruler] to destroy the town but to leave the churches standing, thus beginning a long decline.
Voskopoja today is being depopulated. According to last April's census, Voskopoja and the surrounding villages have a population of 2,200. Many inhabitants work in lowland cities or in Greece.
Dhori Fallo is a writer and local historian. He says Aromanian has always survived, despite difficult conditions: "There has been no school in Aromanian [in Voskopoja] since 1920. So [the Vlachs] had no other choice than to learn Albanian, even having to pay for private lessons. They were Albanian citizens and were only able to speak Aromanian at home."
Today, scholars believe more Vlachs reside in Albania's cities than in the countryside, in marked contrast to the rest of Albania's population. As a result, they say Aromanian is in greater danger than ever of falling into disuse.
No one has any idea exactly how many Vlachs live in Albania. British scholar Tom Winnifrith estimates their number at 200,000, while other estimates put them at well under 50,000. As a result of a decision by Albania's parliament, this year's census made no reference to ethnic identity, mother tongue, or religion."