6) If the intelligent agent isn't God what else could it be?

That is up to you. To continue the analogy presented above, ID is the forensics testing. Others must do the detective work after that.

OK.

Note: This seems intentionally vague in my opinion. The ID supporters I have communicated with keep saying that the "designer" should be minimalist and is not necessarily God.

Another Note: To the best of my knowledge ID supporters are all Christian creationists.