You won't get much support unless you have a proper cable from Ross-Tech.
You can find your nearest friendly forum member with VCDS here - http://www.mk5golfgti.co.uk/forum/index.php/topic,88875.0.html
Up to an hours labour probably, there are people with VCDS all over.Stick up a new one or rename this thread with 'VCDS help in East London' for example and surely someone will help.