Not certain how much I can help you but lets try
Lets see whether you can see the drives from the PCC (The PClinuxOS Control Centre)
Click on the PCC icon in the taskbar - the one with an Spanneer and Screwdriver (rest your mouse over it and it should say - "Configure Your Computer - Administration Center")
Once that opens select the "Local disks" entry
Then select "Manage Disk Partitions!
That should then show graphical view off your disks (and partitions) that can be "seen"
If it can see the 2 disks they may be named something like SDA and SDB (or HDA and HDB) something along those lines
Alternatively, open up Konsole (as root) and type
fdisk -lthats an "ell" not one
Paste what you see back here.