Personally I believe in evolution but the human population will know for pretty much sure whether it's true or not in a few million years ( providing we start tracking progress today).
Then again we see evidence such as the classic example of finches in the galapogas being adapted to each island. There's also the Dodo too, it most likely adapted in the way that it did due to lack of predators and a plethora of food, the species had to reason to leave the island.
Of course, we can never prove a theory to be 100% correct. Take Newton's gravity, for 300 years it was unchallenged (or seldom challenged by flawed theories). However, Einstien comes along in the 1900's
( 30s is it?) with gravity not being a force between two objects but instead, the warping of space around any object. An easy way to understand this is by looking at a tramploine net. When an object is placed on the net, the area around it is curved, balls roll towards that objects, as well as some sliding towards it if the disturbance is big enough ( or if the surface doesn't provide enough friction).
I'm confident that evolution will stand the test of time due the evidence compared with religious alternatives, and no Im not bitching about religion, I've just lost faith.