ESATA external hard drive woes under Bootcamp

Hi everyone,
I have just taken delivery of a early 2009 MBPro 17 inch and a WD MyBook USB/eSATA/Firewire external HD.
I am trying to use the MyBook with eSATA in bootcamp with a generic expresscard that utilises the Silcon Image Sil3132 chip. I'm only wanting to use it as a single drive with no RAID. The drive shows up and works fine when booting into Leopard but under bootcamp it is nowhere to be seen in explorer. I have installed the ATA controller driver and in control panel it shows up as it's own "app" (and even tells me theres a WD drive attached to it). It also shows up in Device Manager under SCSI/RAID controllers as "Silicon Image SIL 3132 Softraid 5 controller.
In the device info panel this is what i see:
Available controllers: SIL 3132 revision 1
Location: PCI bus 6 device 0
IRQ number: 5 (0x5)
Device location: Channel 1 Target 1
Type: Disk Drive
Model: WD My Book
Firmware revision: 01.00A01
Serial number: blah blah
ATA version: ATA/ATAPI-6
Current transfer mode: Ultra DMA mode 6
Host link speed: Generation 2 (3.0gb/s)
Device link speed: Generation 2 (3.0gb/s)
Look Ahead: Unsupported
Write Cache: enabled
But as for gaining access to the drive in Explorer, it isn't recognised.
Am i missing something here?
I am really stuck with this, so if anyone can help i'd be very grateful.
Cheers
John

Where / how can i find that information?
When i "get info" in Leopard it just says it's formatted as "Windows NT File System"
It came formatted as FAT32 but i reformatted in NTFS. Leopard has read and write access thanks to Paragon.
Windows on the other hand can see it if it's plugged into the USB socket, but not under eSATA.
I was wondering maybe that the express card slot might not be fully supported under Bootcamp, meaning no matter what you plug into it the thing won't ever work properly?
The express card is an unnamed generic one with this chip: SiI3132 - PCI Express (1x) to 2 Port SATA300
Drivers are here..supposedly: http://www.siliconimage.com/support/searchresults.aspx?pid=32&cat=3&os=4

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    Hi Paint Guy,
    *Bootcamp on External Hard Drive?*
    Can I install Bootcamp on an external Hard Drive? I don't see why it wouldn't work. Do I need to install the Mac OS on the external Hard Drive first, then Bootcamp?
    By Microsofts Design no Windows can be installed and booted from external HDs. BootCamp just follows this.
    However, according to this http://tubeshards.wordpress.com/2006/12/05/install-windows-to-a-macintosh-usb-dr ive/ it can be done.
    Parallels
    Another question. Does Parallels allow you to not have to use the "option" key to boot into Windows? I mean if I use Parallels can I use XP or Vista at the same time as my mac applications?
    What, (if any) are the drawbacks to using "Parallels"?
    Parallels is an OS X application which don't need a restart of your Mac to run Windows.
    Therefor you can run OS X and Parallels Windows side-by-side.
    Main drawback is, that Windows runs not native (on the real hardware) but in a virtualized environment.
    While this is more than acceptable for 'standard' Office programs, any program that needs direct hardware access (especially games and 3D-programs) either do not run at all or run at noticeable slower speed.
    Also you have to realize that the amount of RAM in your Mac is divided between OS X and Parallels Windows.
    *What Options are there...*
    Is it possible for Apple to allow users to program a key on their keyboard, when pressed will bring up Windows so they don't have to always restart? I need to switch between Windows and mac OS quite often and it's a real pain to always restart. What options do I have?
    BootCamp is no option then, since it needs a reboot everytime you want to switch between OS X and Windows.
    Parallels (and VMWare Fusion and VirtualBox, BTW) run alongside OSX.
    Thanks
    You're welcome. Hope it helps.
    Have Fun
    Stefan
    Message was edited by: Fortuny

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