Exactly incorrect. Theories by nature can never be proven; they can only be disproven. Insofar as scientists draw conclusions at all--they are never actually final--it is necessarily based upon something unproven. We test our theories, and they either stand or fall according to the data. The surviving theory that best fits the data is the one we accept as correct.
As far as science has anything to say about the matter, man evolved from apes. The question will be revisited as soon as there's evidence that says otherwise--at which point we'll weigh it against the huge amount of evidence in favor of common descent--but right now none exists.
Perhaps some things should never be known.
You're not alone in that. I get the impression that if the average creationist could simply destroy the fossil record, he'd do it in a heartbeat.
FYI, I am an average creationist. Your impression is wrong.