Just to clarify (maybe
)
/dev/hda is the first IDE hard drive
/dev/hdb is the second IDE hard drive
/dev/hdc is the third etc...
If your cdrom is first device on the second controller in the system, then it is the third IDE drive.
Make sense?
Also, if you plug in USB drives, they show up as SCSI devices.
(/dev/sda /dev/sdb with partition numbers after)
Oh, /dev/hdc1 means the first partition on the /dev/hdc device.
I'll bet that your hard drive is /dev/hda with multiple partitions, like hda1, hda2, etc. if you put swap on its own partition.