Hard Disk Manager Suite 11

Hi, I have this on CD, and the other day I wanted to resize my WD Caviar Green 1T HDD. I booted to the Paragon Disk Manager CD, and I chose advanced options, and resized the drive into two 456GB partitions, however even though it seemed successful, something went wrong. When I go My Computer, it's not showing, so I chose the Manage Hard drive option, where it was showing as not initialized, when I tried to create the partition, I got a cannot continue due to I/O error. I cant format or anything, however the disks properties show as working properly, and the disk shows in Hardware Manage and also in BIOS. Is there anyway to get this drive working again? I've looked on several places on the net, but all answers tend to say the drives died?