I talked to Dean Of Admissions at Columbia, and she told me that for first couple of years they will not be looking at the 4th score from new MCAT in her exact words: "we will simply ignore it - bc we dont know what to make of it", and also said that many schools will do the same since, they arent sure what it is suppose to be like.
With that being said, i wouldnt worry to much about that part and yes those will be the Socio / Psych 101 courses that you need to do anyway for most majors as gen reqs for major.
Good lcuk