There will be full instructions with it if you buy it....or.... to save money, brundle's idea of slaving it to another pc, would work in approximately the same way. But of course, either option requires the availability of another PC.
It is listed as a usb mass storage device and is working properly. do i need to change something in the bios though not sure about the bit. "If the host controller is not seen in device manager then it is probably disabled in the bios"
Have you tried running chkdsk /f from command prompt.
In run type cmd
at the prompt type e: <enter> (hopefully this will take you to the drive)
At e: prompt type chkdsk /r this may be able to repair the partition and gain accces to data.
If step two doe snot work try command
You can see the options for check disk if you type chkdsk /? in the cmd window.
Disclaimer (there is always one disclaimer) this may not solve the problem - I used this process when I had a similar drive give that message, it allowed me to repair the partition and I managed to get my data - I then promptly dumped teh drive as it was failing).