I have no idea if Adam and Eve actually existed. What I am saying is that, if they DID, . . . the story in the first part of Genesis had nothing to do with them, but was a MAN'S way of trying to understand the world he lived in, and how it could have come about, and placed these two into the story (perhaps because they are the oldest names that came up). HIS lack of understanding, even if it made it into a religious canon, doesn't make it a literal chain of events. The evidence found does not congrue with the story. There is FAR more age to the earth and universe than the 6,000 years suggested therein.
I also agree that there were people before these two people (again, if they existed).