will a amd athlon xp 3200+ cpu work with my kt400 motherboard and my 1gb pc2100 266 ram strip? thanks?

Answer 1

Generally YES, but possibly not at optimum level. It might run at a lower speed if the board only supports 333mhz fsb. Memory is also below optimum because the board could support higher speed memory.
Your next option would be to overclock fsb, if that board is capable of the necessary adjustments.