ok let me clarify:
K6-II/III= Socket 7(Super 7)
Pentuim II = Slot 1
Celeron (Mendecino) = Slot 1, Socket 370 
Celeron II(Coppermine) = FC-PGA
Pentium III(Katmai/Coppermine) = Slot 1, FC-PGA
Pentium IV = Socket 462
Athlon Classic = Slot A(up to 1Ghz)
Athlon Tbird = Slot A, Socket A
Duron = Socket A