Installation couldn't be more simple. Plug the PSU into the Dock and into your surge suppressor, plug the eSATA or USB cable into the Dock and your rig. As I suspected, you don't need the driver disk unless you are using Windows 98. Vista, XP, and ME will recognize it as a removable drive when you insert a hard drive into the Dock. There is also a user's manual in PDF on the disk.
If you want to use the Hard Drive Dock for boot drives, there are a few things you need to check out about your motherboard. If you are using USB, make sure that your motherboard has the capability for booting from USB drives, and if it does, make sure it is enabled in the BIOS.
For eSATA, keep in mind that often the eSATA ports in I/O panels aren't boot capable. If yours aren't, use the expansion bracket, and plug the connector into one of your bootable SATA ports. The system won't know the difference.
Using the Hard Drive Dock:
Usage is also very simple. Take your SATA drive, insert it into the slot until you feel resistance, gently but firmly press the drive onto the power and data connector, until the release button pops up. That's it. XP or Vista will recognize the drive as a USB Mass Storage Device.
So what are some other uses for the Vantec NexStar Hard Drive Dock? One use I occasionally have is the need for looking at a drive that won't boot, usually due to a corrupted MBR, and removing files prior to doing a clean install. Sticking it into the Dock is so much easier than digging out a SATA data cable and SATA power cable, and connecting them to my rig, leaving the HDD hanging out of the side of the case.