just windows partitioning is good enough
"WD Align is only necessary for users who have:
* Installed Windows XP to a WD AFD
* Cloned a source bootable hard drive with any Windows OS to a target AFD
* Created single or multiple partitions on an AFD using Windows XP"
read the description on the websitehttp://support.wdc.com/product/downloadsw.asp?sid=123