I'm a Kosovo Albanian. My tribe from my father side is Berisha as far as I know. My mothers tribe is Gashi. But the tribes in Kosovo are way more general and less specific I think as I have heard that people were able to join them in the same manner that people join political parties nowadays.
From which area are you from, village/town, and do you happen to know which Berisha brotherhood your family belongs to? There are quite few in Kosova, the most numerous though are Doda, Alshiqe, Deskaj, Gec and Mertur (in some instances Kuq also).