Celeron 533 came out at the start of this year. The technology is 98 technology, but it's all based on 94/95 technology (P6 core).
Whats the pin taping for? I've o/ced celerys with no need for any mods...
The only taping I remember was B21 on a P2 300 in order to force 450MHz in a gateway BX board.