First off the PATA cables should be color coded. Blue into the motherboard, grey for the slave, andblack for the master.
Check the hard drives site for the proper jumper configeration. Some can be tricky.
Check the BIOS to be sure it is set to boot from the SATA before the PATA. Floppy or CD before the SATA.
Don't assume that the BIOS is correct in saying the hard drive is hosed. If it is not connected to the motherboard properly, with the jumpers set correctly, It could report anythig. BIOS's are not very smart.