Vista not recognise USB Mass Storage Device

Hello,
I just bought a new Gateway LX Series system. It has a 1 terabyte hd. I have a separate 320 gig Western Digital eide (?) not sata hd from my other pc. My new machine has Vista ( I know, I am waiting for the Windows 7 upgrade disc) and my old machine runs XP Home. I bought a tool called R-Driver III. It says it is a USB 2.0 to SATA IDE cable. It is supposed to allow me to connect my 320gig ide hd to my new 1 Terabyte SATA hd so I can transfer files without having to burn to disc. I have approx. 300 gigs of files to transfer. After connecting the 320gig hd via usb to the Gateway, the only thing that registers is the "remove hardware" feature. It is not listed in the "my computer" feature or anywhere else that I can find. I tried to hunt down some documentation for this tool with no luck. Any ideas to help me solve this would be greatly appreciated.

Thanks in advance,

wrecker69