The drive is not formatted or partitioned. I use XP and use DISK Management to setup the partition(s) and then format the drive.
I right click MyComputer, then MANAGE. You should see your drive under DiskManagement.
This is where you can partition it into as many different partitions you want. Each partition will get it's own drive letter , D: E: F:, etc. Normally you just want to set up 1 partition using the whole space of the drive. I hope you can figure it from here?