Hitachi drive encryption...quick question...;)

Hey all...So I decided per another thread here not to use Vista's BitLocker, but rather to go with Hitachi's FDE (Full Disk Encryption). Do I need some kind of software? I got all of my drives from Lenovo, and they didn't ship any software along with it. I was on Hitachi's site for a while and also tried to google it, but at the end of the day, I'm still unsure as to the procedure as far as performing the actual encryption. What do I need? Can I also encrypt only individual parts of the drive?

Thanks all!!!