Reading the link, I gather that Kent Hovind is a dickhead. (As is Hugh Ross)
What Is Wrong With the "Offer"?
By every appearance of that opening, all that needs be done is to present some empirical scientific evidence for evolution and collect $250,000. But note the asterisk! It leads to the following footnote:
* NOTE: When I use the word evolution, I am not referring to the minor variations found in all of the various life forms (microevolution). I am referring to the general theory of evolution which believes these five major events took place without God:
1. Time, space, and matter came into existence by themselves.
2. Planets and stars formed from space dust.
3. Matter created life by itself.
4. Early life-forms learned to reproduce themselves.
5. Major changes occurred between these diverse life forms (i.e., fish changed to amphibians, amphibians changed to reptiles, and reptiles changed to birds or mammals).
That sound you hear is the scraping of goal posts being moved. It is true that, in its broadest possible sense, "evolution" can simply mean "change" and has been applied to such non-biological processes as star and planetary formation. Even cultural phenomena such as the metamorphosis of language and the development of political systems have been referred to in "evolutionary" terms. <8> Yet, in the United States today, in light of at least three-quarters of a century of conflict over the issue, "evolution" is almost universally understood, even among Hovind's own flock, it would be fair to say, to refer to "biological evolution" (perhaps, among creationists, with abiogenesis <9> thrown in).
However, Hovind is not simply using the term loosely but, instead, is trying to fashion an entirely new and idiosyncratic definition that links vastly dissimilar processes under a single rubric. He then insists, as will be seen, that unless all can be demonstrated equally and in the same way, then none of them can be. It is rather like demanding that a political scientist defend the values of the People's Democratic Republic of (North) Korea or admit that all "democratic republics" are unworkable tyrannies. Just because many things can go under the umbrella of one broad term does not make everything under the umbrella part and parcel of one unitary idea or process.
www.talkorigins.org/faqs/hovind.html
edit:
mp3 of Richard Dawkins talking about evolution on AAR with Al Franken.