Strictly speaking, nothing in science is proven.  In order to prove even 2+2=4, you must assume certain things.  There is no such thing as a 100% proven fact in this world, because it is impossible to say that someting will always happen without an assumption.  Sure, if you add two and two 113,314,798,471 times and get four, there is still no real garuantee that you will get four the next time.
In that regard, it is now time to announce that Evolution is NOT a theory.  Evolution does happen, we did descend from apes, the earth is older than 10,000 ears old, etc.  What the theory is in regards to evolution is HOW exactly this happens;  it could be by Darwin’s way, or it could be another way, we are not sure.  You will never see a book or report coming out with “definitive proof” of evolution, because evolution has been effectively proven for the last 100 years.  Despite what President Reagen said, there is no debate about this.
Now, JR raised a point “What was there before?”  Well, (And on this subject I am not sure of my total knowledge, so if everything I say is bull, please let me know) it goes something like this:
Basically, what the universe is made of is called Quantam Foam.  It is the very framework of the universe.  However, this quantam foam is not perfect, it has small analomies, and therefore has small fluctuations occuring in it evry so often.  These fluctuations can produce any composition of atom, so there is no reason that say, an apple can’t just pop out from nowhere on my desk.  The chance is extremely infintesimal, but there is a chance, and given enough time, it will happen.  Now, this is by no means restrained to apples.  Let’s say that one ‘day,’  a rather large fluctuation in the foam caused a bit of matter to appear.  Now normally this matter woud have been absorbed back into the foam, but their is a chance that it could do the opposite, blow up, and create the universe.  There is a chance for this to happen, and given an infinite time slot, it will.  Or should I say it has?
There may or may not have been a universe before us.  We could be the first, or the trillionth.  Or the whole universe could have been made of chocolate until this one came along.  However, it is, I believe, safe to say that here was nothin there before.
And all creationists are not fundies.  My mother, for instance is a creationist, but she never taught my siblings or I to be creationist, and she has always encouraged us to be openminded about others, and never disrespect others because of race, religion, orientation, etc.  In fact, she actually explained some tenants of evolution to me on a report I did in 10th grade, way back when, and never did she say, “Oh, but it is all false.”  Granted, most creationsits are insane, but not all.
Cervantes
Too long to edit.  Sorry.