"I just wondered, since I still get confused on which kernel to use with which cpu, do I use the i386 ( since White box linux only seems to come in i386) with an intel cpu, but I can't use it with an athlon cpu? I have a celeron 600 I can use it with, but I also have an athlon xp1600. So I figure I can use it with the celeron, but not the athlon. Am I coreect in this assumption?"
I think the distributions use the notation i386 to mean software that is completely PC generic. It will work on any CPU but will not take advantage of the advanced features available on your Celeron or Athlon.
Be prepared. Create a LifeBoat CD.