ross-tech are the official suppliers - you can get cheap leads off ebay; they can be a PITA to get to work properly tho!
 
ah thanks mate. could i download the program for free and just get the lead lol. loughborough is a bit far mate 40 miles from me unfourtnatly :( i phoned up garaged as i only just bought it 3 days ago and there gna fix the problem hopefuly!! thanks
 
im gonna buy that cable interface off ebay where do i get the program from dosent say on that walkthrough or am i blind lol .