Looking for ancestors in Poland and establishing a family tree is never easy. Polish databases and registers are not homogeneous. It is like that due to the territorial losses after World War II as well as the War itself. Also it ensues form partitioning into 3 legal systems - Austrian, Prussian and Russian before 1918. More at
http://www.mflegal.pl/lawyer_in_poland_find_your_ancestors_in_poland.html