Ipod mini not recognised by Itunes

Hi All,

Have bought a used Ipod mini from ebay as an xmas pressie ro ise with a Windows XP/Vista laptop. when I open Itunes it won't appear under the 'devices' pane.

the ipod came with a usb cable ok but am not sure if I need an additional software cd for the mini as well and where I would be able to get it.

Have tried the 5Rs with no joy and have the latest version of itunes installed.

Any suggestions appreciated

Selina