Socket 462 aka Socket A is what the majority of AMD's Athlons, and Durons, Athlon XPs and MPs run on.
AMD Athlon (original K7 and K75 core) : Slot A
AMD Athlon (Thunderbird) : Slot A and Socket 462
AMD Athlon XP: Socket 462
AMD Athlon MP: Socket 462
AMD Duron: Socket 462
As noted above, you cannot use a Socket A (Socket 462) based processor on a Socket 478 motherboard - not only are the pin orientations different, but the platforms themselves are completely different and unique as well (Socket 478 - Intel; Socket 462 - AMD).