I dont know all it says is Acer Travelmate 2450 and alot of numbers, probably the serial. It think its IDE though.
The Serial is LXTCL0514862903D561601
I am also currently running windows vista, dont know if that makes a difference or if the hard drive needs to be blank. (hd also doesnt show up in the disk utility software in the leopard disk, so i cant format it)