You are right, I am wrong. Sorry about that.
Device Manager will show the model of the drive - mine is st980813as. You can also see that by running msinfo32 (an XP tool), navigating down to Storage - Disks.
A Web search on the model number revealed that this is a ST980813AS Momentus 7200.2 SATA 3.0 Gb/s 80 GB Laptop Hard ....
So try it that way, and I'm sorry that I mis-directed you.