[member="sabrina"]
Point 4 was simply that your comment seemed to imply that I was some kind of imbecile {EDIT: I originally left out the space between of and imbecile ... so perhaps it wasn't that far from the truth ... }. I found that insulting ....
As for your other points, evolution as a whole is easily able to be proven in terms of the adaptation of species. However, unless I missed some great scientific discovery, the discovery of evidence regarding the actual process of species transition has been wholly elusive. As well-known naturalist David Berlinski points out: 1) The fossil record does not in any way match the predictions of Darwinian evolution on a macro scale. 2) The central claim of Darwinian Evolution that natural selection and random adaptation is able to account for a great amount of complexity is one that is utterly impossible to examine in nature. 3) In all physical sciences, computer models can be programmed to run simulations that support equations and predict consequences. However, this cannot be done with a Darwinian theory of species origins on a macro scale. Without entering into programs and manipulating computer constraints manually, current genetic algorithms cannot put together anything resembling what we see out of the current model of naturalistic species origins, and in fact will only generate realistic results when programmed not to use Darwinian mechanisms. 4) There is an absolute lack of laboratory evidence. We should be able to manipulate organisms, but "when we look at dogs, no matter how far back we go, they're still dogs. When we look at bacteria, no matter what we do, they stay bugs. They don't change in their fundamental nature. There seems to be some inherent species limitation, and we have no good explanation for this in terms of Darwinian theory."
The fact of the matter is that the only solid evidence we have in terms of genetic variation are small variations, ill-equipped to account for the mass amount of genetic complexity necessary for some aspects of current Darwinian theories. Thus to label the entirety of 'evolution' as a proven fact is misleading. The current understanding of Darwinian theories, according to Richard Dawkins, is 'adequate' to explain life as we understand it. However, even in his writings and interviews he'll speak to the fact that many aspects of our understanding rely on predictions and conjecture, and have yet to receive the evidentiary weight required of absolute proof.