5) What is the philosophy behind ID? Is it the belief that all things are created by an intelligent agent?

No. It is the challenge to the concept that nothing is the result of an intelligent agent.

Is it possible to have the idea of an intelligent designer without having a theistic philosophy driving it? You can not have a presupposition without first holding a belief. If naturalistic materialism is the belief that nature is all that there is and ID is directly opposed to this belief, then what other option is there besides the belief in a supernatural entity? Anything other than the supernatural would be a part of the natural world and therefore fit within the philosophy of naturalistic materialism.

Since an intelligent designer of the supernatural sort (since we are discussing natural phenomena) is, by definition, a matter of theistic philosophy, I agree that we cannot have one without the other! However, we most certainly CAN look to see if something shows signs of intelligent design without believing in a designer to start with.

Your conclusions are based on a theistic bias. Even your initial question, "does this show signs of design?" is based on a theistic bias.

Note: Does this person work for a Lawyer or what?! Why couldn't she just say "yes" to begin with? Is it obvious to everyone but her? Why does she seem so hesitant to answer the question directly? Everyone knows ID is a Christian movement. What's there to worry about as long as the end result is legitimate science? There are a lot of scientists that believe in God after all.

I think she was troubled by the phrase "all things are created by an intelligent agent", because they can not claim "proof" to validate that statement. ID's argument is that irreducible complexity is "evidence" for design. So far the only "evidence" of design they have found are a few molecules inside bits of bacteria. So if you want hard evidence for God, apparently all you have to do is look inside certain bits of bacteria. There he is!