2 and 5 are both vintage-style reprints. #2 is from the 2002 Upper Deck Vintage set, where yes, they did use a style similar to the 1971 Topps design; #5 is a reimagining of the original 1989 UD set, with current stars. It was part of an insert set in one of the recent UD sets. Topps has done quite a bit with vintage styles; their 06 Topps Heritage parallels the '57 set, and their 06 Bowman Heritage parallels the 1949 Bowman set. The 07 Topps Heritage, due in March, parallels the 58 Topps set.