You correct in saying that theories about the past are not the same as theories about the results of laboratory experiments but that does not mean that we cannot have powerful evidence for theories about the past.
Suppose you walked into a room and there was one man in there, he was holding a knife and standing over the body of another man who had been stabbed to death. The shape of the stab wounds match the knife and particulates from the wounds are of the same material as the knife. Email and telephone conversions between the two people are analyzed and it is found that they had disagreements and the first man had threatened the second man repeatedly.
You didn't witness a murder but there is still overwhelming evidence that the first man killed the second man. In the same way, even though we weren't able to witness the full happening of biological evolution we are still able to find overwhelming evidence for it. Please educate yourself
http://www.talkorigins.org/faqs/comdesc/
The problem with your line of reasoning in the analogy is that you weren't there, so how do you know? How do you know that the man, who you never witnessed commit the murder, WAS THE MAN? Perhaps the man who emailed those threats to the victim had a friend who hated the victim as much as he did. Perhaps that the man and his friend went to do the deed. Let's say the man didn't have the guts to do it, and felt remorse. Let's say the friend rips the knife out of the hands of the man, who is frozen in indecision, and kills the victim himself. The friend places the knife in the man's hands and flees the scene as the man is now frozen in shock and awe at what just happened. You now enter the room and see the man with the weapon.
Here's another possible scenario: Perhaps the man had threatened the victim over several emails, as you have said. The man feels remorse and takes the victim out to (Insert fancy restaurant here) and apologizes verbally to him, but forgot to delete all those emails from his draft. Now perhaps the man's identical twin who hated the victim and loathed that his brother never killed said victim did it himself, fled after you saw him, having previously destroyed all documented records of his existence (He is a very advanced hacker) before you figure out that the man had a twin and put the blame on the man?
Or, you could replace the twin in the above scenario and insert another man who had plastic surgery on his face to greatly resemble the man, but he destroyed all records of his surgery (former spy in the military), and then moved out of the country as planned to leave all of the blame on the man?
You will never know the full details if no one was there to witness it. You can piece things through a framework of mind that you have and interpret the evidence through your worldview. Considering this analogy as if it was in the realm of worldviews, your hypothesis is no more valid than mine because in the realm of worldviews the murderer is never caught and there aren't detectives to solve the case. All we are left is the evidence to interpret and no ability to know if we are right or wrong. IN CONCLUSION, this is why using wordlviews as a sole or very defining reason in a criteria for electing leaders is ridiculous.
Also, your link did not work previously but now works apparently. I counter your link with a link of my own:
http://creationwiki.org/Talk_Origins
And with that, I shall cease discussing this somehow ontopic, yet seemingly off topic subject.....