You need a data cable plus software (ie drivers basically, the software that comes with these things is usually shit). Look in the box, see if there's a USB cable and CD in there, if not something like this should do the trick:
http://www.eliteelectronics.co.uk/Motorola_e398_USB_Data_Suite.htmlYou should be able to get one from Carphone Whorehouse or whatever your favourite mobile retail outlet is, as long as the phone's relatively common.
Or if you've got IR on the phone and laptop you could try fart-arseing about with that, but tbh for 16 quid, life's too short.