well if that is the case you some options. 1: you could possibly change the drive letter of the cd-rom to A: and then when promted switch the disk ( i dont recommend this option, just mentioning it so you know it may be an option)
2: get a floppy drive (like 5 or 10 dollars) and hook it up, then use a floppy for the drivers
3: create a unnattended slipstream XP w/SP2 (and controller drivers) CD with nLite (just do a google search for it)