Dude, go into your BIOS and tell it to 'Boot From CD', put the Win2K CD in your drive, and boot. Just follow the instructions. At some point it will ask for your qualifying product, at which point you put in the other CD, then it will tell you to put the win2K CD back in, then more following of instructions, and you're set.
Simply put: follow the onscreen instructions.
-bZj