The Albanians of Albania proper are about 70% Muslim, 20% Greek Orthodox, and 10% Catholic. (John Belushi, who would have been 70 years old yesterday, was of Albanian Christian heritage. Mother Teresa of Calcutta was an ethnic Albanian born in Macedonia.)
I think the Albanians in Kosovo are almost entirely Muslim, but besides the Serbian minority in Kosovo there is a small Croatian Catholic community dating back to Ottoman times who settled there when it was on the trade route between Dubrovnik and Constantinople.
The only good thing about Enver Hoxha is that he pretty much destroyed Islam in Albania during his rule, so that modern-day Albania is pretty much secular.