I accidentally found a simple work-around (don't ask how)...if you have a virtual Windows program (like VMWare), open it, login to Drive, then toggle back to OS Snow Leopard. Miraculously, it was there on my iMac desktop open. It appears that you can access the drive in XP and it stays mounted. Hope it works for you...obviously it is not a seamless bridge, but easier than transferring toanother drive, etc.
I'm as far from a computer geek as they come. I literally was just logging into my drive via VMWare to see if data had been lost...dumb luck.