You want to the hard drive with the OS on as master, only the first IDE cable for it to work properly.
The cd drives doesn't need to be set in any order.
I would put the Harddrive on the first IDE cable, with it on master, with nothing else on it. The 2 cd burners on the other cable.
Cisco CCNA, Comptia A+, 1/3 through CCNP