yes drive belt is same as serpetine belt. rebuilding the pump needs special tools and experience, I have replaced that little seal only and it worked for year already-without any problems,
Power steering pump does not fail and does not need rebuild. only needs to be removed and seal to pressre releave valve replaced. this will fix the problem. yes leaking oil on alternator will cause it to fail often. power steering pump has to be repaired. it is the seal where it says -O- ring-Spring seat-snap ring.