@werthers93
I know what you are talking about, but I actually hoped that I didn't :-(
I once had a 6 GB IBM hdd, also taken from a laptop. I tried to install the drive many times, using both HDToolBox and HDInstTools from Aminet. HDToolbox told me that the drive was write protected, but HDInstTools could save my changes. After a reboot the changes were gone though :-(
My brother hooked the harddrive up to his tower PC, and after he failed to access the disk using FDisk we concluded that the drive was dead. I'm afraid this is the same outcome for your disk.
I never got my drive installed even after 30+ attempts, so the drive has been in the bin for long time now.