Oktar is working from a category error that is also propagated daily in the newspapers. Science never "proves" anything. "Proof" may (or may not) occur in mathematics or geometry, but the best status for a scientific hypothesis or theory is "not yet disproven". The criterion of a scientific statement is that it must be susceptible to disproof - that is, it must be capable of being overthrown by further observations.
Religious dogma, on the other hand, cannot be overthrown (in the minds of the believer) by any fact or experience.
Oktar's claim that any not one of all the fossils "proves" evolution is meaningless, because evolution is the process of development, and it is in the relation between different organisms that evolution is induced, not in the examination of any single specimen.
Philosophy should be taught in schools, in order to avoid the widespread misunderstanding of science that exists.