The jumpers were easy to figure out and not as complicated as the author makes out. Contrary to the experience that na85 had; "Cable Select" _never_ worked for me.
Yes it was a time of chaos and frustration, but I learned more in that period then I did since then. Hard core hardware lessons.
Note: most IRQ jumpers and motherboard jumpers were the same size as the drive jumpers. I was never at a loss for jumpers, but I did manage to lose them a lot.